I think we need less old junk now and more 2409 stuff. :p
I think the 2409 stuff gets better and "more Trek" the more time logged that the artists spend on classic Trek stuff. They're good artists but they get more "Trek authentic" with their original designs the more they do the old designs. I don't think the 2409 stuff will be perfect until they've got all the TOS-to-Voyager assets in and then really start making 2409 stuff as a progression of that. There's a design lineage and I'm not sure they'll get it as well as they could if they keep skipping to the end (and, in the process, forgetting things like the blinky lights under the viewscreens).
Doing 2409 stuff allows people to make a lot of concessions to practicality because "It's brand new; you've never seen it before!"
Doing the stuff chronologically through the series forces them to make fairly established designs work with their tech so that, when the original designs come, they won't be the product of technical concessions.
I also personally kinda think that they never should have put 2409 stuff on the C-Store and that the C-Store should feature regular releases of non-2409 stuff. Which may force it to come slower since it will be competing for attention with Featured Series but, the way I see it, the ideal would be for the C-Store to be ENTIRELY non-2409 stuff and the game subscription to cover any 2409 stuff, since nobody is a fan of 2409 coming into the game.
Except those arnt TMP uniforms. We might have a case of acronym confusion
TMP is used to described the "era" of all Trek movies up to Generations. Timeline wise, it goes ENT, TOS, TMP, TNG(which includes VOY and DS9). Keep in mind these are "eras", and TNG era includes all TNG movies made after the series ended.