Hubble's fate
Grunsfeld would rather get science from the HST until the very end.
There should be 2 more servicing flights to the telescope with eventually a device to control its re-entry.
If the HST is left without servicing for more than 5 years, I wonder how long before it drifts without gyroscopes controling it. The gyros have a tough time in space and don't have a very long lifespan.