When will PlayStation 4 support be stopped?

[Johners]

Yeah dude, poor PS4 can't handle such an ultra heavy and hyper demanding realistic taxing game like FFXIV

An online game has completely different technical requirements than that of a single player game such as Horizon Zero Dawn. You're barely getting 30 FPS at the best of times in XIV, even on a PS4 Pro. Cities and larger pieces of group content border on being unplayable at this point. Other games have used overhauls of underlying systems to drop PS4 support, we're at that crossover point with XIV.

My expectation is they will probably end it with 8.0. But it's obviously going to depend on the stats as well. If the rest of the industry has already pressured gamers to get a PS5, then there's little point in SE putting effort into supporting it.

Got to also consider that 8.0 will likely be in 2027, so it's a long way away by which time a lot more may have migrated than currently.

I'm assuming that they'll be dropping PS4 support with the release of 8.0 but it would be fair to communicate that sooner rather than later. They realistically already know the answer, much like choosing to end Windows 10 support alongside Microsoft's own end of life schedule (although in this case the game will still likely run, you just won't get any assistance via support tickets).