On IMDb Pro, they list all of the projects "in development" for JMS. They're projects that were announced at some point that may or may not ever come to fruition. There doesn't seem to be any set time that a project drops off, probably because it seems that projects just stop moving forward, they're seldom formally dropped (that I can tell).

Of all of these, I'd most like to see:
Midnight Nation (adaptation of JMS' comic)
Repent, Harlequin! Said the Ticktock Man (adaptation of Harlan Ellison story)
The Flickering Light (original JMS screenplay)
Vlad Dracula (original JMS screenplay about Dracula)
Voices from the Dead (original JMS screenplay about Doyle/Houdini)
How about you?
Of all of these, I'd most like to see:
Midnight Nation (adaptation of JMS' comic)
Repent, Harlequin! Said the Ticktock Man (adaptation of Harlan Ellison story)
The Flickering Light (original JMS screenplay)
Vlad Dracula (original JMS screenplay about Dracula)
Voices from the Dead (original JMS screenplay about Doyle/Houdini)
How about you?
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