Difficult case.
When you have as much crowding as you, I don't think extractions would really collapse your face. You have enough teeth already to support your face.
I can see from your teeth pictures that you have protruding teeth, and also that your canines seem to be a little pushed forward. Teeth will protrude if they don't have enough space, and also from bad habits like the tongue pushing at the teeth.
It would be interesting to see how the wilckodontics braces would work for you. If you managed to widen the arches a little, you can free up space so your teeth won't protrude as much. I think you might benefit from sliding genio anyway after wilckodontics though.
I'm thinking about wilckodontics myself, as I have crowding with protruding teeth myself. My canines are pushed forward a little, and I think this has a big impact on profile. Rounding the arches + some widening would help, at least theoretically.
What sucks is that there isn't much info on what impact wilkcodontics will have in cases like ours. At least it will help with our teeth alignment. Needadvancment had the procedure done, and for him it was a success.
Here you can read about it:
http://www.archwired.com/AOO1.htmHere is someone who expanded their arch with it:
https://tanyagetsbraces.wordpress.com/