I think everyone sometimes feels something like " it would be cool if game has "that_feature", so what about your "what i like to have in game but i haven't..."?
For example for me it is:
1. minimap (as part of common interface);
2. ability to upgrade temper\tanin\... for example 1 "gold" = 200 "purple", 1 "purple" = 200 "blue", 1 "blue" = 200 "green"...