Anyone else notice at around 1:15-1:16 on the youtube trailer, the Girl-in-Red uses her sleeve (which has a metal blade attached to it) to attack the derplander?
I think it might be an allusion to the Cloth weapons from Tactics, which could only be used by Dancers and Onion Knights (in the rerelease).
I also think the metal blade is what she is holding on the games logo too.