No plans to get rid for a while, but that's just purely down to finances - the ST is alright, but IMHO it's not the be-all and end-all.
A KTM 990 Adv might be first on the list. I also like the Moto Guzzi Stelvio NTX.
If BMW could build their bikes properly I would like an RT or a GSA.
More realistically, the V-Strom and Wee-Strom have caught my eye, I quite like the idea of a Wee - that little 650 would be more than enough with our suffocating speed limit. I quite like the new Wee. Maybe a Triumph Tiger 800XC would be worth a look. The downside to these bikes is that they don't have anywhere near the fuel range of the ST.
I wouldn't mind a go on a ST1300, I reckon I might like that a bit more than the 1100.
I also quite fancy a KLR650 to try some 'Adventure' riding on, but this would be in addition to something else.
Just need some $$$$