Most Dominion NPC ships now have a playable counterpart (the Attack Ship, Heavy Escort, and Dreadnought). The new models are obviously higher quality, and more canon-accurate. Why, then, do the NPCs still use the original models?
I can't imagine this would take a ton of work to fix (although I could be wrong), and it had already been done for the Romulan ships so there is a precedent. If it isn't too time-consuming, I would very much like to see the new Jem'Hadar ship models (like this one) replace the old ones (like this one).