If SC continues the success FC had on Steam, I have no doubt about that. In fact, I feel that FC's success on Steam is the main reason SC is still being worked on. However, and I know I'm being a pessimist here, I don't believe we'll get TC any sooner than 2017. 2018 most likely, and I would not be surprised if SC is delayed to 2016.
Anyways, I'm hesitant to believe we'll actually get Sen. Getting a PC port will increase it's chance x100, but I don't feel that's likely. But who knows? XSEED might surprise us, and I'd love to be wrong.