Well of all the ships missing from TNG I'd like to see a Connie or two just reassure they are still out there in the 24th Cent.
Well they were retiring the Enterprise-A at the end of the 23rd, so I doubt there are any Constitution's in service by the time of TNG. If anything I think they'll edit the footage to
remove that chunk of the Connie's hull in the Wolf 359 graveyard scene...
you mean you didn't notice all the circuit board and console changes they did?? LOL
Yeah they turned a Dial Clock into a Digital one in an Episode.
It's possible that for Borg edit's they'd probably make their control panels more in-line with what we saw on Voyager and First Contact.
Digitally retconning the entire Borg race though, I think that the cost of doing that is a bit higher than what CBS is willing to put down. I mean, in order to do that and make it look believable they'd probably have to re-shoot new scenes with the same technology that was used to make Avatar, and that'd be expensive...