No I dont think they will announce any of that this early, they are still working at xv dlc now maybe next year at the earliest. Im only 10% sure that versus reboot games are actually coming though only if Nomura really wants to do it and Square thinks its really viable will it happen. Although I really do want it to happen.
Reasons it might happen: Versus Was Nomuras dream game and now that XV was so successful they might put him on a reboot, or a XV-2 in a new reality, like if the original XV occured in a dream or occured in a different reality.
Reasons it might not happen: Nomura is tired and dosent want to work on it anymore and square just wants to move on from the XV universe. Tabata keeps his word of it being one confined game. Also if the Versus script just isnt viable anymore. Like they rewrote it so many times and it just wasent a good script (I know I say that Versus was a going to be a great story but there is a chance it might not have been)
Really if a Versus reboot isnt possible, I just want a Directors cut of XV itself with all of its "cut content" included in it.
Honestly the way I see it, after Final Fantasy XV's DLC stuff, and a PC Version. I don't think they are going to let go of this world just yet especially with how well the sales are.
Kingdom Hearts 3 will be done this year and probably ship next year
The FF7 Remake will probably be finished 2022 Unless they go yearly with that then we will probably have the entire remake 2020 if 2018 is the first release. X-3 will be one game, but after that they might not have anything they can do high profile like FFXV, or VII Remake, or X-3. So who knows maybe they will announce a Kingslaive game next year, add a FF DLC world to KH3, and maybe tease a Versus XV trilogy. I mean It could be possible as it would give them a stop gap from this generation to the next generation, and they could be cheap and easy to produce do the assets already being there.
Meh.
We'll be getting DLCs/FFXVI out of the way before any thought of either of those project are considered.
I don't think we will be getting FFXVI this generation, I think Square will be doing FF spin-offs, a 7 Remake sequels, and FFX-3. I don't think they want another FFXV situation, on their hands, where they announce the game people like it, then have long droughts of news, then generation switches.