I doubt it. I mean, BoN could always wrap it up prematurely; but if he chooses not to, then he still has a long ways to go. I remember a post by one of our members here (I think it was
@ballzak), who looked at the code and detailed some of the foundation that BoN had laid, but not yet implemented. In particular, I remember him mentioning that there were 5 or 6 more Tinymon cards (meaning Sarah’s storyline is A LOT longer), and that every schoolyard character had a house that you could visit (Tyna’s is coming in the 1.4 update, but we have yet to see Beth’s, Daisy’s, Christian’s, and Tom’s). We’ve been to Markcus’ house, but not in a Markcus storyline involving his mother and/or sister (which is sure to come). I could see Miss Taylor’s storyline being longer simply because the Ronald issue hasn’t been resolved yet. I also fully expect something to be done with Miss Turner, and I wouldn’t be surprised if Miss Gyna has more content coming as well. Then there’s Amy and Laura, who obviously have more content on the way; and the alternate storylines for Jet, Shasha, and the Foreman’s wife (which will require BoN to backtrack some). Plus we have no clue how long the main storyline involving your dad, Maria, and Nesrot is actually going to be. Just to do all of this
without introducing any new characters is going to take some time, but you know BoN will probably introduce more characters. I personally think we’re probably a year away from the game being done.
I was watching a walkthrough of Assassin’s Creed Origins on Youtube, and I think that BoN is trying to create a similar “open world” game. Where there is a main mission/storyline, and a bunch of side stuff that you can do if you choose to.