IntelliHeath
As in "Heathcliff"
Technically DLC Pack 2 released in FY15 (April 2015), so this doesn't have to mean anything. At some point, the team does need to move over to the next portable/hardware, but if the DLC team is small enough, it wouldn't be that surprising if we got maybe one more pack (Battle Mode expansion?) this holiday season.
If we does then captain toad is more likely to be playable. I doubt that we will since they probably want to move on to new projects.