We are - LRO
It will supposedly image many of the landing sites, which will presumably
be easier to locate than some of the landers on Mars.
In addition to finding out what happened to some of the early Soviet
Luna efforts (one of them may have survived landing relatively intact,
but hit just hard enough to stop transmitting seconds after landing),
I also hope they image Surveyor 4, to see if it landed safely or crashed.
I want to say imaging the Apollo landing sites will finally stop the Moon
Hoax conspiracists, but I know better.