Hahaha oh my god. His original wish is to bring Mitsuru back to life, at the moment he doesn't remember that though so he's wondering if the wish might be to save his mother (she tried to kill herself, but it failed and she gets better in canon anyway).

Oooverall I'm pretty sure he will use his wish on someone else, and I honestly have no idea what. Logically it would be very him to wish something like "free everyone in the pillar" but I doubt that would actually be possible, so I'll see how it is when that day comes.

Albert's top five girls in Sabra? (interpret that however you want to)