Something I wished was in City of Heroes was a bank to put in items. They did this for Salvage (which was a lot of fun, I admit) but there were no storage areas for Inspirations nor Enhancements. The latter would've been very useful, especially if you plan to release special enhancements like the Hamidon Origins were, where I ended up with one I would like to use, but not yet as I had a set that gave it's own impressive bonuses instead so I would've loved to have had a place for them to be saved up.
I'd also like it to be accessible similar to the legacy bank in Swtor where all your characters can gain access to whatever is in there. This would work great as a way to save salvage from all different characters over multiple play throughs on the game both Villain and Hero side. Possibly accessable at a neutral place (like Pocket D, Rikti War Zone and more) as well as normal city zones.