Personally I doubt they are really interested in rigging new body models, and the appeal of ogryn is that it’s a single gendered body model that’s different from everyone else. They really don’t like making anything new in this game whatsoever. Making a whole new body rig in order to justify making a fem class that probably won’t sell as much as making a multi-gendered class that just follows their current rigs.
Also, most of the ideas for a female-only class that everyone comes up with are either “zealot but better” or “female=healer”, and I find both of those to be really boring. We already have “zealot but better”, that’s just scum, and this game’s only interesting support option is scum’s custom variety buff pack that you put on the ground for funsies.
But, if we’re talking about unlikely yet cool things to want in the game, just give me a kroot with a stupid sniper/spear hybrid weapon and a tommy gun that shoots arrows with a blitz that’s just me tossing a hook and yanking enemies around and I’ll be fine with it. The actual fun and interesting things to want to include in this game are unfortunately locked behind a “must be this lore-defined level of power to be included in this for fun” door which is locked behind another “must be this logical to have a group of 4 in any given mission to exist” door.