As soon as possible.
As i said i don't want to release a bugged or insconstant upscale from screen to screen.
As ff7 background quality isn't constant from one screen to another in original game, the upscaled version need to be tweaked as much as possible to get a great render.
So i've done the game twice to try to find the better filtering option for each screen, i tried lots of waifu/esrgan/imagmegick combo filtering (from no filtrering at all, just esrgan, to a combinaison of about 5 filtering renders layered).
There's no more big bug ATM, and the background pack is well optimised.
But i have a great alpha tester how's doing the game right know and have found little fix and optimisation i correct while is testing (some black pixel (not missed a lot myself but he found some)) a mis-animated door ...
I'll take the time needed, but when a release will be avaible, it won't be a beta.