My first reaction is to say “Yes”.
But after stepping back and taking a moment, I realized my knee-jerk reaction is foolish.
Although it would be great to keep the pair together in one month, I feel the scope of them combined would mean neither will get the time they deserve.
Some factoids:
1) Hexen was developed as “Heretic II”, this is evidenced in the source code where each file header has the line “Heretic 2 : Raven Software, Corp.”
2) In Heretic we have the hero taking on the first of the Serpent Riders, whereas in Hexen the second rider is dealt with – albeit in another dimension, with a different hero.
3) The Heretic engine was based off DooM while adding flying, looking up-down, inventory, translucency and varied monster attack types and drops.
4) Hexen is based off Heretic, while adding character classes, falling damage, fog and a hub-based level design.
5) Hexen introduced the ACS scripting language.
6) The player can move back-and-forth between levels and items/monsters are persisted. Something that Heretic and DooM did not support.
https://doomwiki.org/wiki/Hexen
