No, Joiplayer is an emulator that supports only games made with RPG Maker, Ren'Py, and few other game engines, but not Unity. Even if you could emulate it, the game would crash at some point since some levels (especially the outskirts of Orario) are quite performance demanding.
Winterfire.So there are no plans for an Android version, but maybe in the future we could have one, or when you do a remaster of the game, you might release it like you're doing with Vox Gremory.