I can totally see that. He is the Sean Bean/Ned Stark character. A big name to lure viewers in but with a limited time on the show
Well, its possible. But like i said , he stirs this show all together. To take him out I think would be detrimental to the show, to the fanbase, and to the number of people watching it over the long term. I feel it would be a bad idea. It will be a lot more fun to have prime lorca or at least MU lorca trying to "do good" back in the prime universe as Captain with a huge secret (which could lead to future mirror shows).