Just yesterday, I happened to check nethack.org for the first time in probably a year or so. I was intrigued to see there had been two announcements this year, hinting the development was still ongoing. And the next day, BAM I see this.
Anyway, I don't know if I'll really get into Nethack again, it didn't look like there have been major changes in the quick game I just played (killed by a boulder) but the interface improvements look nice. It appears the popular Status Colors and Menu Colors patches ave been rolled in for instance.