A proposal I heard today and found interesting is to have a dualing area where we can test our heroes and their skills/hidden capabilities.
This could be an area where you can test your heroes unlimited by pvp rules, even without your main in the formation.
The 10 pvp attacks hardly give enough of an impression to know what the heroes are all about.
In other words;
It would be nice to have an area where you can go to test your hero against others.
No rewards, no stamina, unlimited testing with another servermate or even people from different servers.
Anything a little more flexible than what we can use at the moment would be very nice.
Arena does not cut it as a good ground to test, at least not for me at this moment since the powerdifference is too big.