i can see the point that you want to keep a nice balance of real time mixed with RPG, but i think for game longativity which this definately has the need and room for, you have to add aspects of RPG. So ivnesting in your villages/castles/towns.
Yes this kind of stuff is more RPG orientated and yes it might deter some places, but then again over all would the community be happier with these features ?? I mean at the end of hte day you cant please everyone and i would bet most people would be in favour of more RPG style functions. I mean therei s already a heavy RPG aspect as far as inventory, money and skills go, so a few extra features i doubt will alienate players.