Well, I'd do what you've done and go down the Musicman route - it is IMO the natural evolution of the J and P bass!
I find myself a little bored overall with typical setups and I've turned towards basses that are a little more interesting - graphite components, headless designs, high tech preamps etc etc. However, I am not a fan of things that are frivilous in design, they have to add to incredible tone or playability. Recently I've found myself interested in basses with unique and interesting preamps and electronic settings. Things like Alembics, ACGs, Wals etc etc.
I also believe that the Musicman style humbucker pickup is the way forward, it just sounds so much better than a singlecoil or a split coil or whatever!