It would be nice to see updates to nethack, I can understand that they are conservative in not wanting to radically change the game 'design', but it would be great to see it given a UI overhaul similar to that recently applied to ADOM (now available on steam!), i.e an 'official' NotEye release.
I know ASCII purists will scream at the thought, but there's a lot of depth in nethack and it's a shame that no kid in their right mind today would give it a second glance.