osu! lazer is planned to be multi-platform meaning it can run in any environment whether it be Linux, MacOS, Windows, Android and iOS. Simply meaning osu! droid will be depreciated since lazer will provide full support like ranking and features as opposed to the older.
twirl_old_1
twirl_old_1
basically above, although i can't confirm the android part because i heard that it wouldnt even compile to android, but that was a few months ago