It's safe to say there aren't going to be many, if any, new first-party Wii U games until the release of the NX, with the exception of Color Splash. Are there any first-party game soundtracks that have stuck with you, some that you enjoy listening to even while not gaming?
For me, I absolutely love the soundtrack for Captain Toad: Treasure Tracker, and listen to many of its tracks almost every day in my playlist.