Where the quantity of maps and mods is pretty low, we finally have something interesting ongoing for Heretic again: A community project called Realm of Parthoris (btw, wasn't there something called HPack, anyone?). The project is spearheaded by Egregor and is already coming along quite nicely, based on vanilla compatibility and from a pistol wand start. From what I could see it has a very classic feeling and it's definitely a good thing to get another megaward for Heretic of quality - as in my eyes, it's still one of the greater fps shooters with a medieval/mystical background. Anyway - check the dev thread.