The most precious datamined material are mechagnome looks!
Without further ado, here are the datamined apperance options:
Just random looks:
The hairstyles are a shout-out to reroll (I think no one doubts them to be an allied race?). I would consider this, because currently I have 5 gnomes (again).
The only troubling thing is their mechanical parts. As of preview, you cannot hide the palms at all, you cannot hide feet, and pants cover only the crotch/butt zone. Any chest pieces leave cog-shoulders open, but shoulders apply.
Obviously the whole point is showing off their “improvements”, but it would require some struggle from me to stop thinking of them as prosthetics. I’ll have to think about it hard.
Those royal hairstyles tho.