I watch them too 
Ikr. Light or dark whatever they are so enlightening
This subject has been being talked about in new age circles for decades now. No one ever gives a date (except 2012, lol), or a time frame for it to occur, with the exception of a few who say that it will happen at a point in the future where no one alive right now, will still be alive then (how convenient to their narrative).
I watched that whole video. The person said a lot without actually saying anything at all, which is the sign of someone whose either trying to scam you, someone who is so flighty as to be living in a delusion and have no grounding in reality, someone preaching dogma, or some combination of those things.
This is basically the new ager version of the rapture.
Whens it gonna happen already?
Well supposedly it’s already happened. I think it’s one of those movement type things that if you put your attention on it you start to open yourself to that idea and start to feel its effects. Just like pretty much anything to do with magic. For me I think 2017 is an especially important year. 2012 might’ve been important for a ‘new age’ cause of the Mayans and numerology for 5. I have heard some ‘light workers’ agree that 2008 was an important year of change as well, being 1. And 2017 would be 11 after that which is an important number in regards to the idea of enlightenment.