Ugh, thats just forcing him into the story. We dont really even know if the shadowlands are a threat, personally id much prefer him delegate, maybe correspond with someone to catalogue what is happening, have him lock himself in karazhan focusing on something else entirely, let him set up a new threat rather than just get a participation ribbon for every event.
We dont need khadgar sending us to get bear asses or operating the magic door. give him time to focus on his own personal goals, the shadowlands arent within his scope as a character.