Night Gallery really would be a more appropriate "true sequel" to the Twilight Zone, featuring Rod Serling and everything. Where Twilight Zone was sci-fi oriented, Night Gallery was Serling's followup show featuring tales of the supernatural and horror.
HP Lovecraft stuff, tales of weirdness...get the guy who impersonated Serling to do it again, have insanity-producing things like Pickman's Model in the game. It would be another chance for Lawlor to really get weird and produce a real sequel. The only problem, as in Outer Limits, is the lack of recognition that comes with the oft-rebooted Twilight Zone. That and the fact it's not 75+ years old.
But we also know that Lawlor excels at original themes, over the top and well unified.