X-Men The Animated Series is a weird choice to bring back. It's not a timeless classic like BTAS. It's horribly dated, and it was pretty dated even in the 90s thanks to shows with better animation and writing like BTAS and Gargolyes. Some of its cast, like Jubilee and especially Gambit, are too stuck in the 90s to work now like they did 30 years ago.
More sketches from the show’s Lead Character Designer Amelia Vidal: