The F-117 is really an amazing and unique jet. It deserves to be modeled properly and get a home in DCS.
The fast intense action of a dogfight is not there sure, but we have fighters for that mission.
I would think a quality built night mission requiring accurate mision altitudes and a specific timeline to place your stealth jet unknowingly to the enemy over the target area covered in SAMS to destroy the correct target and return home undetected or shot down has an equal amount of action in a different way.
Besides just the random flying with a buddy doing formation flights or touch and go's or sightseeing to take awesome screenshots. Either way, I say hell yes, bring on the Nighthawk!