xMetroid on 30 January 2018
Would make sense since Retro worked on MK7 although to me it's one of the worst episode. I also think seeing the disappointing sales of TF, Nintendo probably asked them to do something else. A 2D DK wouldn't have taken so long since it would be basically the same assets and engine as TF and it would need to release only at the end of the year or next year bc of the Wii u port.
I also think its possible since the Switch doesn't have its own racing game. I fully expect a new Mario Kart on it but another franchise would make much more sense.
Retro are known to break boundaries and have amazing level design, so if DDK racing there is, i think only them could make it really interesting and stand out from what MK took away from DDR.
