I think an in game chat system like MSM would be good
I like this idea, most big tribes use skype as an addition to the game, but I find skype to be very processor hungry, and dont like using it much, as it lags the software I use for work, if we had a more simple type of chat within TW it would be much better and very useful for all tribes, Im sure.
I like the name change idea too, and Im glad that this forum is NOT for gameplay advantages for cash, as TW is one of the few games left that people can join in with from a younger age, and not be at such a dissadvantage. Many of the newcomers to TW who play on non-premium will go on in future years to play as premium users, because they have had the chance to join in, even if they dont have a job or credit card/paypal accounts.
I think another thing that might be kool for a few premium points per month would be better features, especially pictures, in the profile page. I would like to be able to add pictures, in the same was as we can in forums, on my personal profile. And other features in the profile page, to make it more individual and interesting would be great. Maybe not as far as things like myspace where you have music players and so on, but a few nice gadgets, adding background colours or pictures, and something that tracks our progress on the game, on our profiles would be good.