I think your own question annotation is appropriate :)
?! = dubious
I'm teasing (kind of). Variants are a low priority at this time because a small number of people play each one, so you have to just keep adding more and more and they appeal to smaller and smaller numbers of people. Plus, where do you show all of those ratings and stats for each one??
Anyway, it isn't happening in the next 6 months :)
Hey chess.com! I have a great idea! Wouldn't it be great to play different chess variants on the #1 chess site? Take a break from those normal games and put some variety into your day! Play bughouse, chess 960 and all kinds of other variants.
It would be great if you consider this erik, and I'm sorry if I'm repeating a past topic.