Long A: First off, the reason why Viera and Hrothgar can't wear hats right now is the following.
We have very standardized specifications when it comes to head gear and the unique design with the long ears on Viera doesn't always meet these specifications. If we allowed every head gear piece, it would lead to clipping or other errors. The unique design of Viera and Hrothgar just prevents us from allowing these pieces, if we want to follow our specifications
Nevertheless, we are aware of player feedback and we are definitely not the kind of dev team that ignores their players feedback. (Healers would like to know your location)
There were a few things we said would be impossible to do, but we worked hard on it and made it possible in the end... I hope to have some good news soon.