FFXVI and FFXVII Online.
No, but seriously, it definitely could be for FFVII. However it could also just be them announcing a ton of new IPs and other titles in the works. They do have enough ideas to keep themselves busy for a very long time, FFX-3 for example hasn't been taken off the table. XV still has their stuff going into Summer 2019. There's that Avengers game that was talked about once and never again. Tomb Raider is currently getting a lot of promo. KH3 is obviously the thing everyone's going to be looking at because that drops this year. Dragon Quest is coming back with another mainline title. Left Alive is probably in the wings somewhere. And that's just the main offices, I believe. That's not even getting into the Tokyo RPG Factory and the other smaller companies too.
But I mean, even though I'm saying all that, it's probably gonna be because of the remake showing up, it's been years since we've gotten anything substantial.