“Ever” is a very long time, I’m sure eventually it will. All software will. Everyone using and working on it will eventually die. All men must die, all civilisations eventually collapse, all species eventually go extinct, all planets become inhabitable and all stars die…
But it’s not very likely to happen soon. Xorg is not going anywhere in the foreseeable future. On the contrary, if I were to make a wild guess, I would guess that Wayland is more likely to get abandoned sooner than Xorg. Of course, the user nobody can know what will happen. The point is: Xorg being deprecated is greatly overstated. It is still regularly updated and used by millions. And besides, Wayland sucks. You can’t even run Xeyes on it.