Conversation so far:
What prompted Nairs comeback?
The "comeback" of Jayan and his renewed popularity lately may be taken as an affirmation that Jayan has not been replaced even nearly three decades after his death.
Has there been any new releases of his works?
A documentary on Jayan's life and death Jayan - The Man behind the Legend is nearing completion for release in the near future.
Did he receive any awards?
best remembered as the first and best action star of Malayalam cinema, so far, besides his trademark colourful attire, risky stunts, machismo mannerisms.
Did he leave behind any family?
CANNOTANSWER.
Have any other stunt actors emerged in his absence?
The "comeback" of Jayan and his renewed popularity lately may be taken as an affirmation that Jayan has not been replaced even nearly three decades after his death.
Have any plans been made to memorialize his contribution to film?
A film titled Avatharam presently under production, is attempting to bring back his screen persona using advanced technologies.

Question: Do they have any indication why the resurgance happened when it did?
Self-contained rewrite: Do film producers have any indication why the resurgance happened in 2000s