I think he has unretired. Always said Hit Somebody was going to be his last movie besides Clerks 3, but a couple years ago he said HS was going to be a miniseries instead and hasn't talked about it since. Then he said Clerks 3 was going to be his last, and that he was going to film it this year, however he has filmed this and has been talking about a christmas movie and a rapture movie.
So who knows when Clerks 3 is going to happen. I'm hoping he lays off the weed by the time he gets to it.