Great to see you doing this, alway been a fan of your work. Looks like it is coming along very well indeed. the engines look great. Good to hear Wiley's doing the Probert design, you know that will bee great too.
In my hollow dome I call a mind in it's imagination,,:P
I think that we are talking about space here,, The Alpha Quadrant alone would have plenty of room for all kind of classes of starships.
I could see Ambassadors being part of the classes that were doing a lot of long range exploration missions, that may have been far out when the dominion war was happening. The closer ships would have been refitted for such a scenario. Also resources would have been shifted to newer designs for the war effort and older designs would have been put "on the back burner" until needed to be produced again. When you are at war, your gonna pump out the designs suited for war before you get older designs unless things get bad, then you would mout quantum launchers on anything that could fight. The BC storyline would be a good explanation for the Sovereign Class not being seen as well.
Nuff that rant,,back to reality,,

Cant wait to see the texturing for this baby. Keep up the good work