Just a point of clarification ... the mod you are playing is the regular "SoaSE Maelstrom v1.182", right. Ok, now, we have an expansion for the regular SoaSE called "SoaSE Maelstrom Expansion" (for v1.191) which includes dreadnoughts. You haven't seen it yet and it will be released soon. Also we will be releasing the regular "SoaSE Maelstrom v1.191" soon too.
Now specifically regarding your questions,
1. "So each race has a Dreadnaught and the dread for the normal races are just the standard Starbases while the three new races have new stuff"
Yes, just bear in mind that the Dreadnought/Starbase in regular SoaSE (Maelstrom) is nowhere as versatile as the Starbase in Entrenchment i.e 4 abilities in SoaSE/ 8 abilities in Entrenchment, nor are the abilities themselves as versatile (no new Research screen)! However, the dreadnoughts certainly changes game play!! So, all the Dreadnoughts have new abilities for all 6 races (i.e 24 new abilities) only the models/textures of the original 3 races are the same as in Entrenchment, also, there are all new models/textures for the 3 new races in "SoaSE Maelstrom Expansion".
2. SoaSE Maelstrom Entrenchment v1.051 is mostly complete and undergoing testing. The problem is game "slow down", which I mentioned in the forum previously, the solution of which will impact ETA. So, hopefully in about a month. I could release a beta version to wet your appetite (or for testing)? But be warned we are not satisfied with it, for the above reason!