It's Nintendo, maybe they want to go in a different direction with the next MK? Who knows, maybe MK9 is a tactical RPG.
So far, it's one MK per device. A new one announced so recently after the release of MK8D would split the community or make MK8D obsllete too fast. I don't count on a next MK for the next 3-4 years.
I also don't believe in a genre change.
Intel Core i7 8700K | 32 GB DDR 4 PC 3200 | ROG STRIX Z370-F Gaming | RTX 3090 FE| Asus PG27UQ gaming on 3840 x 2160 @120 Hz GSYNC HDR| HTC Vive Pro :3
Reached PC master race level.