We've seen shots of Chaos Player models and skins but besides what they look like. I was just reading about the species statistics and the questions came to me. Will Chaos be a new team/species or added to another? will you be able to use them in singleplayer?
Species Statistics gives bonuses and penalties based on certain figures built in to the model code through the Pawn and Actor subclass Species. For example the Gen Mo Kai are very quick but can't take damage worth a darn ie they are great as runners for CTF and BR but suck at base defense, but the Juggs can absorb insane damage but are gawdawful slow so they fit in as defenders but will be useless at capturing a target that is not nearby since they will get their butts kicked becuse people will be on their butt the entire time. If you will notice the species more lightly built will on average be faster and more fragile and the heavier species are slower and more robust when Species Statistics is enabled.
Jingle, jingle, boom. Oops, you're dead.
That sucks cause I wanted to play....
But let the show go on!