Simogo has been hard at work porting Year Walk to Wii U. However, the port is completed now, and the developer shared this on Twitter:
There aren't details on their new games yet, and whether "see one of them" means a game will released this year or merely revealed.
Now that Year Walk is done, we can tell you that we are working on two games. You'll see one of them this year! — Simogo (@simogo) August 29, 2015
We'll be sure to let you know as more information becomes available.