Why do you want to make an iOS/Android version when the game isn't very popular right now? You mention the competition will be a lot higher so why do you think it will be worth it?
Just interested in it, I can gain this way experiences in releasing paid game on Android/IOS.
From other side t's a lot harder (crowd market), for other there are not many paid tycoons, real tycoons games + a lot of players asked about mobile version.