As of right now, things to buy with epic points is at a down fall. Can't really sell them because all you can really buy with them is custom weapons and titles. Then the issue with those two, are that they rely on a patch update for them to be put into the game. So here is a few things that I came up with to add to shop that don't rely on an update.
1. extra rank 8 ring's (can only equip one at a time of course). To have one for attack, one for defense, or some other random engrave.
2. Slaying/Warden runes or blessing with a time limit.
3. upgraded Buff pill that combines the effect of SoD and SoA but last 30mins or less
4. un-tradeable/account stashable Iron guards (maybe?)
5.un-tradeable Nebula Dust orb and Starseeker powder
6. Gem glow effects to add on top of fashion.
7. Foe system for a limited time. (ya I know this bits into voting, but i think pick-up-all and self rez are more sought after)
Just a few thing that i can think of at the top of my head