It'll be interesting to see if/how the new flyer rules affect forgeworld going forward. Death from the skies doesn't touch any of the surprising number of forgeworld flyers, many of which seem like prime candidates considering their clear roles.
The Xiphon, Nightwing, and hell blade for example should have better dogfighting abilities than just about any of the codex birds... while it'll be harder to classify things like the phoenix bomber which literally carries no bombs.
My biggest question though lies with the super heavy flyers. I'd personally love to see what a dogfight between a thunderhawk and a vampire raider would look like.
The raven was the dark eldar's only "single role" fighter, so that question is answered at least.