From the looks of it, Eliza seems to already be in the works. This was off of the Twitter accounts of one of the Skullgirls animators. I only knew that Big Band was a WIP, but glad to see that Eliza is also being worked on. All that's left is Beowulf and we're set.
Now if you noticed, her septer isn't drawn in her walking animation, but is instead a 3D model used for testing purposes. It's very likely that Eliza will get a Litchi-like playstyle, where she throws her septer and whatnot. Bonus points to Lab Zero if they give her a Litchi color template. I also heard that Eliza is a blood-based character so that's one thing to consider too.
And of course, the most important feature of all is the boob jiggle. It wouldn't be Skullgirls without boobs. For some reson, they seem smaller than for her story mode counterpart. This could be an artistic mistake or it could be because this is only a walking animation. Anyhow, if not, that means less booby action and a happier Kimo.