I too vote Europa for our next stop - dere be water uner dat ice, i tell you wut.
After watching that spacecraft that was sent to collect solar particle samples fall from the sky live on NASA TV im on the edge of my seat in anticipation to see what is going to happen with the Titan probe. This one was made by the European Space Agency (the cassini part of the craft was made by NASA, the Huygens probe the ESA) and will hopefully do a better job with paracute deployment.
As for what i think we will see, i think we wont see as much liquid as we would like on the surface, and won't get much of a suprise of any kind (unfortunately). However, i am very excited to see what will happen, and have been following this mission for quite some time now. There have been some truly amazing pictures of both Saturn, Saturn's rings, and Saturn's moons so far already. Personally i was expecting the mission to fail when i heard the spacecraft had to fly THROUGH the rings to get into orbit in the first place. I like the audio file NASA put out that let you listen to the craft as it flew through the rings. You could hear all the little particles smashing into the spacecraft - it was awesome.