I read via Christien Rioux twitter, that L0phtCrack is being reacquired by the original authors.
They are preparing a special information session at SOURCE Boston (Thursday 10:15 am), and they will be releasing version 6. Also they will explain the story of the product from the days of L0pht, @stake, Symantec and L0pht again.
Check this site for more info soon.
I will be there for this session!