Player generated assets.

I think that CCP could create some tools for uploading and moderating submissions from the community. These would all be for parts of the game that are not important to PVP or performance, i.e.

• Station interiors.
• Clothing.
• Space ship interiors.

The engine exists (Captain's Quarters) all it probably requires is people to build corridors, chairs, etc to flesh it all out. Yes, they will need to code ways for people to meet each other publicly or invite each other into more private locations.
However, if the meshes and textures are generated for them the mountain becomes a hill and is far more surmountable.

There would need to be a guide on this, such as making three versions of meshes and textures, lower quality and with less nodes for low settings as an example. 

.... or maybe and here is a whacky idea ... CCP should just contact Linden Labs and get their own grid for EVE players. >.>