It would be pretty neat if somehow, various TOS items were made available. I'm thinking things like the phaser pistol, or a TOS tricorder emote, or a communicator "beam me up" emote option. They could be unlockable, or available in the C Store (for like 5 points or something). Nothing major or game changing, just fun stuff.
I would argue that "suggestions" aren't necessarily covered in the feedback descriptions that they give. Yes, they are a form of feedback, but they are also a form of general discussion. Additionally, you could argue that unlockable items aren't really part of "gameplay" which is the only feedback forum this could go under.
I realize I probably should have posted this there, but whatever. It fits here too.
Anyways: ISS would be awesome. Other ship insignia from that era would be neat too.
The geek in me would love to see a full range of TOS gear. I already have my whole bridge crew wearing the uniforms. I do see how it would be out of place, and might make some of the hardcore RPers annoyed, but I would totally spend a few C-Points for the TOS phasers, communicators, tricorders, and the whole nine.