Final Fantasy Crystal Chronicles Remastered Edition now it'll have to wait to play this game for later in the year 2020. It was announced on the Final Fantasy Twitter feed, it's been confirmed the game has been delayed from its previously was announced that it would be out on 23 January 2020.
Now it has changed to less specific "Summer 2020" date. According to the tweets, this is being done to give the team the time it needs to make the game the best experience possible.
So when it finally does launch, Final Fantasy Crystal Chronicles Remastered Edition will be available for Switch, PS4, iOS, and Android. It will feature cross-play between all four platforms.
I think the best bit is that you'll be able to transfer your progress between them as well.