Dwarven RP need not be static. If everyone was diverse, it'd be better. Improve your own RP instead of asking how the RP of a whole group can be improved. Eventually people will follow in your example if you do it well enough.
Haven't been on the server in a while, but some general ideas would be to;
Continuously innovate technology on the server, Create things like bustling pubs and even "casinos", Increase the amount of real time merchanting going on. That would be a start.
