Just because it has another meaning doesn't deter from that one! But I guess it'll be meaningless unless they call the third version Z so you're right.Well considering that there's DNA in the logo, X Y is probably about chromosomes, not axis. I don't know what they'd name a 3rd game. XX and XY?
It'll be pretty crazy if the sequels become the new 3rd version. I don't know if I'm ready.