We'll either see Byuu return to life back to work as usual, perhaps even making an attempt to redeem himself, or him returning as a proper troon. Or the "perfect ending" where he makes a proper Xbox emulator.
Or maybe he ends up offing himself for real, realizing that lies are a ticking time nuke, with yield proportionate to the extent or extraordinarity of the lies. Honestly, this nigga really did do a big brain operation. The Japs are known not to be nosy, so even the retro gamers in the know would maybe be surprised and then just assume that it's merely a similar looking gaijin, just like we westerners would have trouble telling nihonjins apart, unless we knew a lot of them because of circumstances. And any gaijin there would just make a fool of him/herself going paparazzi mode on Byuu.