The JWST orbits out beyond the Moon, so I don't know if the Orion capsule and European Service Module even has the Delta-V to make it to that Lagrange point and back. Plus, I'm also unsure about the life support and duration requirements for such a mission.
I imagine the only realistic repair mission would be with a Starship crew, seeing as Orion and all the other Commercial Crew vehicles would probably require some additional components to make it out that far and to sustain their crews. Starship seems big enough and far enough along in development to be viable.
Edit: The JWST has a docking ring to let Orion service it. But I don't know if the SLS in it's available configurations can get it up there. It seems like a contingency but I don't see any solid information about an Orion service mission.
I imagine the only realistic repair mission would be with a Starship crew, seeing as Orion and all the other Commercial Crew vehicles would probably require some additional components to make it out that far and to sustain their crews. Starship seems big enough and far enough along in development to be viable.
Edit: The JWST has a docking ring to let Orion service it. But I don't know if the SLS in it's available configurations can get it up there. It seems like a contingency but I don't see any solid information about an Orion service mission.