I wouldn't mind seeing a terran empire pack in the c-store. Hook all the current mirror unis in. add terran empire ship markings an ISS designation and a cryptic designed 25th century uniform. Maybe even agonizers for our belts.
I'd buy this. Toss in the ToS MU uniforms, the Ent. MU uniforms, maybe the Original Open jacket cover as opposed to the nerfed one, the violet nacelles and highlights, the ISS prefix, the sleeveless captains tunic, maybe a ship skin for tier 5 ships. (I'm thinking of a universal skin... one that can be used on all types of ships. Sci, tac, eng., etc. Something obviously more militaristic than standard SF issue. Along the lines of the Maelstrom, not the Maelstrom specifically, just something more aggressive looking. Several of the skins seem more aggressive to me than others already, the Maelstrom, Comet, Nimbus, Hephaestus and Imperial. Something like these.)
As good as universal slots? Nope. But it (a universal tier 5 Terran skin) would make pvp a bit more of a thought process rather than 'kill the escorts, kill the sci ships, screw the cruisers'. Flipside is tier 5 fed pvp becomes STMU:O as escorts and sci ships 'hide' in the MU skin.
Sell it as a pack and break it up for individual sale like was done with the Enterprise pack. $
Note: All of this has been suggested before... in the C-store forums and elsewhere. Thus far no word from a Dev, as far as I am aware. :p