Just saw this on reddit. It's about as close to official as one can get... https://www.reddit.com/r/StardewValley/comments/a0rvra/android_might_have_to_wait_a_while/
One quick question, and it seems likely someone will have an educated guess-- when SDV is released for Android, will owners of the PC edition have to purchase it again to get the mobile edition? (My original purchase was through GOG if that makes any difference to the answer.) I'm going to have to guess the likely answer will be yes, since the Google Play store isn't associated with GOG, but I figured I'd ask anyhow.