Yes, she would, though she was not in the tent Minerva picked up on the odd event and came to see Cherche before coming along for the ride.

I think rotating the cast is a good idea, not all of them will be effective in certain places. Though you don't need to play them or if you want to you don't need to be used all the time. It is a choice thing if it is too much I will deal with it myself as I have some characters in mind. I am trying to make it somewhat more FE like than it already is. FE has always had a big cast but to make it easier we will focus on a few while the others are doing whatever they are doing on the battlefield at the same time. This makes it less stressful and less confusing or so I hope.