Will be there any lightier version of game for android? Obviously with lesser pics quality (you dont really need to much picture quality on 6'' screen) and sounds/music? (maybe with removed story content if it is public build)
Some devices (especially with low specs) cant even open 2gigs apk to install game.

the game will be 1.4 gb in the next months and it's way more stable, so wait for the spooky November

Yeah, we just did this actually - like Yanepedik said, it's about 1.4gb and is much more lightweight on android, which'll be publicly available soon.