Well, this is disappointing. The BBC article (via Slashdot) reports NASA has decided Hubble is doomed to fall back to earth. No servicing mission to fix Hubble's gyroscopes, no possibility of carting it back to display in a museum. NASA's deemed a Hubble mission as too unsafe.
From the article,
Readdy, a former shuttle astronaut, said Nasa had already analysed the question of whether to send astronauts to fix Hubble, and determined that it was unsafe.
He added that Hubble offers no "safe haven" for astronauts seeking refuge from a damaged shuttle, while the ISS does.