Get a probe over there ASAP!
A direct flight to Saturn via Hohmann transfer takes ~5 years. Peggy could very well be destroyed before we even got there.
i wonder how much deltaV cassini has left. why send a probe when one is over there already?
Lots. Not in the sense of fuel (it has very little), but by gravitational assists from the Saturnian moons, particularly Titan. During its primary mission, Cassini has changed its Saturn-relative velocity by over 30km/s via this method, which is more than the delta-v required to get from Earth to Saturn in the first place.
But the problem is that gravity assists takes a lot of time, both to plan and to execute. We could probably do it, but with the uncertainty in Peggy's future evolution there's again no guarantee that we would see anything by the time we got in a more favorable position.
Cassini will be closer to it in 2016 anyway, and there's still plenty of science we can do in the meantime. We'll just have to wait and see what happens!
