I'd like to see the XG1 Star Wing instead of the Scimitar. While similar in overall performance, the XG1 had Ion Cannons, most likely had stronger shielding (considering it had stronger shields than a y-wing), and was around before the Scimitar. It also, IMO, just plain looks better.
I think that the replacing the scimitar is a great idea the star wing was after all in much wider use and the scimitar was really only used by thrawn.
Miller, I'm not sure if the points on performance are necessarily points in favour of adding it. Scimitars are already powerful, and they have the Defender above that so it may not be the best idea to trade it for something more powerful. For appearance, I prefer the Scimitar, but more importantly it fits the Imperial designs better.
It's true that the XG series were around before the Scimitar, but considering you have to research it anyways, having a fighter that was developed during the timeframe of the mod isn't a huge negative. From what I've read the Star Wing also fell out of wide use before Endor, whereas the Scimitar was used pretty widely by Thrawn and then at least maintained some sort of consistent presence for the next 20 years (Kir Kanos used one, so they were still used under Palpatine to some extent, and they popped up in the Vong War as well).
They obviously need the Tector/Allegiance as a purely capital ship combat oriented capital.
Short term plan is Praetor, long term plan is Allegiance. The Tector was considered, and was planned for for a long time but ultimately I decided to axe it. There's nothing inherently wrong with the Tector but the power difference between an ISDII and a Tector isn't really big enough to justify using 3 capital ship slots for such a similar range (ISDI-Tector), and there are some readability issues ingame if you're trying to micromanage. Kind of hard to know at a glance what's a Tector and what's an ISD.
I'd like to see the ancient Dreadnaught dumped entirely and replaced with something like the Procursator (again, not much canon stats other than 1.2 KM long) that fills the same basic role "cheap generic capital ship" or even the Gladiator despite it's runtish size.
The Dreadnaught is kind of too iconic to drop, and it fills a pretty unique niche though it could probably do with some power or durability buffs to offset its poor mobility. The Gladiator is in the same space I guess, but it's being saved for the PA. The Procursator is more of a VSDII replacement.
I assume the Asasult Frigate is the v1? I'm hoping so.
I would also like to see the rebels need to research the dreadnought before being able to research the assault frigate would also like to see the mark 2 to added as an upgrade to the first one.
Assault Frigate refers to the Mk. I. It would be redundant to give them the Dreadnaught. As for the Mk II it wouldn't really serve a purpose, and they retconned it so that it went out of production after the time period of EaW.
If you wanted to give the NR a second supercap the Mediator would make sense, if you didn't mind coming up with a weapons load for it.
Came during the Vong War, and we have absolutely no desire to make a second SSD for them.