I imagine this will be an issue for Platinum.

1.) They have over 200 staff, presumably at least half of which were making Scalebound.
2.) Nier Automata is about to go gold, and Yoko Taro makes it sound like it's not going into sequel mode right away.
3.) Activision killed off their licensed game division, so that's not an option anymore.
4.) They have the Gran Blue Fantasy project and Lost Order, but I'm assuming that was going to take on Nier's staff given Kamiya wasn't attached to it.

Now they need to get a project from someone on a short turnaround for a ton of staff in an era where that kind of thing is pretty hard to do, and they were struggling to get contracts even when that was less true.