The Chess Pieces

Does anyone else here have in interest in the chess pieces being used by Xehanort and Eraqus in that one KH3 teaser, or subscribe to the theory that they directly symbolize who might be in the final battle/KH3 (as opposed to just being the various 'pawns' the two will make use of in the future)?

I admit I'm mostly interested because I'll take any excuse for thinking Vanitas may turn up again, lol --