While this would never happen it would be nice to have SE officially support the dat mod community. Ignoring the obvious adult themed mods available there's been some really nice work like new faces, hairstyles, body tattoos, and clothing. All very well made.

SE could allow artists to submit their mods for review and if approved the dev team would just need to touch them up and test them. Once everything is fine the final design could then be added into the actual game itself.