Imho it's time we've got secondary accessory and aura slots.

Secondary auras can only be hand/head/feet one's to pacify those who would cry about too much fx.
Accessories can be anything cos they are already small and usually hardly noticeable additions.

Would lead to more people actually caring to farm secondary auras/accessories, obviously resulting in more time capsules and store things being sold.

I don't know about auras but one of the devs (Charon I think) said that adding a 2nd accessory slot is on the to do list but not a high priority.

Theirs already alot of visual pollution on character models as it is

We need less visuals during combat not more.
The idea sounds great on paper but in practice the screen is already a laggy mess as is.
They need to get rid of henchmen, thats the best possible start to cleaning up the screen IMO