If that's the consensus then we need volunteers to maintain:
haskell2010 haskell98
These packages should now be fixed and immutable, save for errata. I suggest the relevant language report editor (or maintainer) would be responsible for applying errata patches?
array directory old-locale old-time random
Weren't these five basically the Haskell'98 standard libraries but with new hierarchical names? If so, then perhaps the two "old-" ones can simply be dropped, and the other three either folded back into the haskell2010 package (or an appropriate successor)? Unless a willing volunteer appears of course.
base
Isn't base already largely maintained de facto by the GHC team?
containers hpc mtl pretty
All of these either have obvious authors, or have recently seen love and attention from particular contributors. Perhaps those authors/ contributors could be encouraged to take on maintenance?
extensible-exceptions
integer-gmp process template-haskell unix win32
So I guess this bunch is the rump that may be trickier to find good homes for. Regards, Malcolm