Since Karlach looks like she is getting that new 'buff' character model that's been kicking around in the files for a while, I would think that she'll be another strength-based bruiser, which makes me wonder if Lae'zel will be made into a dex fighter to avoid redundancy-since we know
Minsc
is coming and they are definately str-based, plus she does use a scimitar in her art after all, which is a finesse weapon.
I like her new look-very striking, and looks much more fitting for the 'footsoldier of the Blood Wars' backstory she has going on, and it's good that we'll have a buff companion of both genders for folks who like that sort of thing. I'm going to assume that they are going to change her hairstyle from what she has in-game as well, since that's a generic hairstyle and afaik none of the companions so far use the generic hairstyles. Looks like she's almost done though, I wonder if she'll be ready as a companion by the next big patch.
