Absolute, immediate, emphatic YES! Much has been said on how "key" civilian characters have to be before they overcome the inherently boring nature of normal-ass people in normal-ass clothes in a long underwear character line. But Jarvis is in the Foggy Nelson, MJ Watson league where you can't have a proper display without him.
Basically regardless of what format he's released in. I worry he'd peg-warm as a single release, so maybe a fan channel two-pack would be the best way to get him out there. Silverclaw's a great pairing.