We've heard Grant Kirkhope do amazing musical scores for Donkey Kong 64, and now Mario + Rabbids Kingdom Battle.
Likewise, David Wise did fantastic music for various Donkey Kong games, Star Fox Adventures, and BattleToads.
I'd like to see Kirkhope come back to score another Donkey Kong game, or even Zelda, which he said he wanted to work on before. Of course I'd love to hear David Wise working on another Donkey Kong game besides Tropical Freeze.
Since they're not the only great game composers out there, what composers would you like to see make music for which game franchises? :)