Let's first have a quick and simplified views of the history and spirituality.
Long time ago when people still hunted and gathered there were no greater specialization, women were gathering and men hunting. People lived in small tribes and if someone discovered something such as a certain plant has certain properties it was shared with the community, and everyone had access to that knowledge. Hence if some spiritual beliefs existed these were commonly shared among the tribe and no one had any greater understanding then anyone else, hence everyone were their own spiritual guides so to speak.
But technology moved on, food production got more efficient tools were created, and it was no longer necessary for everyone to be concerned about acquiring food, some could produce news tools and exchange them for food, some could make nicer cloth instead of working in the field and there were still enough food to go around to support the community and be traded for other goods. This specialization divided the knowledge, wheres before a hunter knew how to make his spear, hunt, cook and make cloth from the hide, now there is a tool maker that makes tools and know nothing about how to farm or make cloth, farmer know nothing about how the tools he uses are made e.t.c. Hence the need arose for someone that knows how to heal people, someone that knows the effect of different plants and is only concerned with human well being, those people were called shamans. At this time the profession were decided by family, that is father teaches his son his profession, mothers teaches their daughters what they know, knowledge went from parent to child.
As time went and innovation continued so did specialization, some farmers became only concerned with sheep, producing wool and meat, some focused on cows, producing milk and meat, some farmed the earth producing food for other farmers animals and bread for the people. Tool makers specialized in construction tools, farming tools, weapons e.t.c. So did shamans some focused on healing physical body and some focused on mental and spiritual wellbeing. As the specialization increased the efficiency there was enough abundance for some not to produce at all, some could spend their time learning, schools were formed and children no longer had to follow in their parents footsteps. Among other things religious schools were formed, where the time is spent learning about what shamans before you discovered, hence organized religions were formed.
As time goes on more and more knowledge is compiled, more and more time needs to be spent in schools to learn it all, hence people that have studied for the longest time become kind of authority, priests are the only ones that supposedly know what it is all about and the rest have no chance of understanding it unless they dedicate their life to study of religion. This results in authority of the church and a single truth. Since the church had the truth it also merged with power, and the world had a system where kings ruled based on advice from church.
As more time went by and ways of governing changed, state and religion got separated in majority of countries. This is where the world is today, where there are established organized religions speaking with authority since they have studied the subject for such a long time, but exploring alternatives is no longer considered to be dangerous.
Then what is it we see today?
Today we see that established religions loose the authority, as informations is easier to get for every day, it gets harder to maintain that high position of authority claiming to be the truth, religions have to compete with other sources of information, and hence they have to adopt in order to survive and compete on the informational level, and that adaptation means going online, on the internet where there is so much information so easily accessible.
Result of that is that online there is no authority, all information is equal, a crazy person in the cellar can be as convincing as a Priest, Imam or Rabbi and it is up to the people to decide what sound reasonable and what doesn't, especially when it comes to the new generation, young people that grow up online, gathering information they feel is necessary and not what is fed to them through schools.
Hence we are back to hunter/gatherer society that I described in the beginning but this time online, with communities that share with each other, and every member knows the same thing, every member is his or hers own shaman. This community can be Christian, Islamic, Jewish, Hindu, Buddhist, some new religion or a merge of several, but every member in this community has access to all the information, hence there is no authority, just a knowledge database shared among members.
Over time patterns start to emerge, some Ideas will become more popular and some people will start spreading those ideas outside the community, those ideas will become more dominant and communities harboring those ideas will grow both in number of members and amount of ideas. This will result in some members that did join the community early and having greater knowledge will be treated as an authority by newcomers, in other words online shamans will be born, but instead of just educating the offspring those will educate the community.
Overtime the amount of information will become overwhelming and it will be hard for everyone that want to know exactly everything, hence those "online shamans" will be forced to write it all down in an easily readable form so that newcomers can read a "read me" thread before starting asking questions, this will be the new bible of the new online religion. But this bible will inevitably grow with new ideas and elaborations of old ideas and as it is with any other "read me" or license, very few people will actually read it, and newcomers that read might not understand what is meant.
Hence the "online shaman" will be forced to teach and interpret what is meant, and a new organized religion is bourn. With only difference compared with what happened before is that this birth has to be open for all in order to happen, any attempt to act as an authority before an agreement of ideas is made will kill the birth process, or kick you out of the community for preaching.
Where are the signs? Everywhere, there are countless forums online discussing philosophy, spirituality and religions, there are endless sea of videos online bringing new Ideas ranging from all mighty god as a creator to energy to aliens to atheism e.t.c. And spending many hours watching those videos and reading forum posts I see ideas converge.
I expect many years before what I wrote above happens, perhaps I will not be alive to see it, but from what I see it is where we are moving.
