Doom creator John Romero returns to Doom with a sequel to his 2019 Sigil expansion model. The proper name Sigil 2 will be released for Doom 2, taking a proper step forward along the timeline of Doom Doom until the next game. Sigil 2 doesn't have a release date yet, and it hasn't developed much either, but I wouldn't despair of ever seeing it. Romero has been playing games most of his life. It would be crazy to stop now.
The original Stealth was a huge unofficial expansion for Doom, like many before, except that it had the distinction of being made by one of the main guys who made Doom. What does he do, I don’t know, officially unofficial? Not officially official? You can read a nice breakdown of Stealth here at PC Gamer by Jeremy Peel, which they really liked. “There’s the feeling that Romero has fun with the tools, explores ideas, and develops topics,” he said at the time.
Romero accidentally pointed out that he was working on Sigil 2 at the 3D Realms Deep Realms event. When asked what he is doing right now, Romero replied "Stealth 2," continuing "we have a very funny map, it's very funny."
“I can’t put an appointment on it,” Romero said. "I think it's going to be worth it when it comes out, just because there are a lot of levels and I want to make sure they have a really good consistency and progression, and they're really hard. They're fun to play, it's like a Doom 2 version of what felt in some of these levels of Stealth ".
You can find the first Sigil at romero.com
Romero's plans for after Sigil 2? Something for Quake. “I know it’s next after Stealth 2, most likely it will be,” he said.