This is something I've been thinking of for a while, full scale era packs. Here's an example:
TOS Era Pack:
All TOS uniforms
TOS Phasers I, II, and III
The addition to this would be a toggle-able client-side change. 25th century tricorders are replaced with TOS tricorders and animations, the transporter effect is changed to a TOS counterpart, and instead of using combadges characters use handheld units.
These would pretty much be hardcore eye-candy packs, with little effect on gameplay. Different era packs would come with their own uniforms, ships, weapons, and on occasion, animations.
I know cosmetic flim-flam like this low on the totem pole, but I can hope.
(I hope I got the general idea across, I'm a bit tired.)
The people who cant see the TOS bundle in the store seem to be the people who baught them, i have the TOS and cant see it unless i go to the legacy unlocks to get extra phasers. I dont own the Enterprise era bundle but can still see it listed to buy.