Oh nice! Wasn't expecting to win. Thread is looking great so far!
I'm not a big fan of crossover DLC, personally speaking, but I may as well follow suite, so with that in mind...
Wave 1:
Characters:
- Link
- Kirby
- Captain Falcon
Cups:
Wave 2:
Of course, the vehicles and their parts will be relevant to the characters themselves, like the Speed Star from Sega All-Stars Racing for Sonic. Each wave also comes with two sets of palette swaps (Toad and Yoshi for the first, Shy Guy and Birdo for the second).