It looks to me like they have already implemented some great improvements to the damage model for WOFF. Both the visuals, where you can see much more finely detailed damage (bullet holes, shredded plane fabric, etc) and the DM itself where I believe Winder stated (somewhere) that the fire can actually spread and cause other structural failures. So your first wish appears to already have been granted.
Also, I know when I fly P3 now, if my guns jam I'm pretty much done for. I can never get them working reliably again. Single shots at best. So that's probably already taken care of in WOFF too.
Damaged airfields due to bombs is already in there as well. Pol showed some pics of Winder returning to his base after it had been attacked. Blown up buildings. Scorch marks. Looked very good.
Cable snapping sounds would be cool. As would a more convincing sound when two planes collide in mid air. In P3 it doesn't have much weight to the sound. More like a thick piece of paper being ripped than anything else.
Without a doubt we are in for a treat sir. And if by chance OBD isn't able to fulfill all of your wish list, there's a small army of dedicated and talented modders who love to fiddle under the hood to change things.
I'm waiting for Wings Over Flanders Fields to be released.
Everything else is just killing time.