At least six to seven years from now. The story hasn't even reached the halfway point yet and still has tons of content in the pipeline. As is stated above an Android port is probably going to happen, but it most likely won't be worked on until the game is close to wrapping up production.
Also to clarify, the fine folks at TimeWizardStudios are and have been working really hard on this game. The reason I say it will take that long is not because of any shirking on their part, rather it's because of how ridiculously in depth this game actually is and the sheer amount of things they are doing with it. Just wanted to clarify that point.