There is now 53 (54?) unique frames covering a lot of area in themes and gameplay
Personally I am surprised and disappointed we haven't gotten an actual wizard type frame. Might be little odd with Chroma and Lavos but I want one that looks like a wizard and has some sort of way to cycle through casting spells, I'm thinking similar concept to Chroma but with a focus on casting instead of weapons
Also kind of surprised we don't have a medieval Europe style knight or Samurai (Unless Excalibur or someone I'm forgetting counts)
This one is just a personal complaint, I want a more dragon themed kit in a frame but I know Chroma is taking up that space. I like the look, but he just doesn't feel dragon like enough for me
We don't really have a druid frame, one that can shapeshift and use nature themed abilities. Oberon doesn't count, he's an Oath of the Ancients paladin.
I would like a proper take on the barbarian/berserker theme as well, Valkyr is supposed to be that but her kit is so outrageously outdated the only ability that fits that theme is her 4. I would also prefer a big two handed weapon over flimsy claws but that's my subjective preference.
Druid would be sweet, also missing for me would be a classic "by the holy light" type paladin. I think Oberon feels a little scattered thematically in my opinion