What do you guys think GTA Online will be like in a year or a year and a half? Will people still be playing it?

I'm only asking this stupid question because I'm a gaming YouTuber and I decided to play all of my games in yearly order. I have a lot of games to get through before GTA 5 and Idk how long that will be. I want to play the Online Heists but since I have no friends, I'm gonna need other people. A part of me is worried that when I get to GTA 5, GTA 6 will be out and everyone will be playing that and I won't be able to play Online. I really like the heists and The Contract. If I'm a succesful YouTuber, people would jump at the chance to play with me but I very much doubt thats gonna happen. Am I being a an idiot? GTA Online is like the biggest thing ever. Surely there's gotta be some people I can play with