I think that GNW Hinata will arrive before Sakura. . . lol . .
We already have revives in game with 3rd Hokage, pre-nerfed Tobi, Enma, etc. . .
Sakura would be a whole different healer, though, no? She'll probably be later. . .
Heck, they may even put GNW Sakura in an event for purchase only. They did that with GNW Sai, no?