Team RWBY being guest characters as a bundle like the TMNT in Injustice 2, if only because of the DC/RWBY crossovers we've gotten, and since Justice League x RWBY Part Two is coming out real soon. And they should totally allow you to use either their Beacon, Mistral and Atlas Arc designs. Plus, the interactions between Ruby and Regime Superman could really go hard; he'd totally remind her of Ironwood, let's be real.
What do those of you here who watch RWBY think of this? Would this be something you'd want to see in an hypothetical third Injustice game?