It's hard to say, because we're just talking bridge modules. E-A could be anything from a refitted TOS ship to a newbuild contemporary of the refit considering she has a modified version of the TMP bridge to start with.
It's 6 years in between 5 and 6. My guess is the Enterprise's cushy next gen 5 bridge was completely torn up and rebuilt into it's skeletal version to fix a lot of the bugs. Excelsior was probably rocking the transwarp demo bridge until they gave that up later, and she got a copy of whatever bridge the Enterprise was using.
Eh, there are too many aesthetic differences between the interiors of the TFF Ent-A and the TUC Ent-A that go beyond the bridge. Metal deck plating replacing carpet throughout, overhead pipes in the corridors, the light grey walls replaced by a darker, bluer battleship grey. It's not just limited to a swap out of bridge modules. I can't sleep at night thinking that in TFF, the parts of the Enterprise we
didn't see look like their darker, harder-edged counterparts in TUC.
I have a few theories:
1) There was an extensive refit of the A after returning home from the Barrier.
2) There were so many issues with the A we saw in TFF, that after returning home from the Barrier, it was scrapped for parts, and another Connie that was in production was christened as the Enterprise-A for the crew to immediately transfer to. This newer Connie had the newer, more hard-edged aesthetic we see in TUC.
3) The TFF Enterprise-A and the TUC Enterprise-A exist in two completely separate parallel universes
I have been debating all this in my head because I want to do two series of renders of other areas of the ship besides the bridge, but want to maintain the aesthetics of both films for each series. I want to visualize what a full sized engineering set would look like in the TFF aesthetic (light grey walls, wooden hand railing around the warpcore, minimalist detailing!) and also want to do the version of the engineering set we see in TUC (battleship grey walls, red hand railing, more visual interest!).
'm just trying to figure out the best way to justify the fact that there will be such a stark difference between the two to the people that will no doubt point out that inconsistency
