I'd like it if they made a refit of the Morgai into a carrier escort for now, considering their layouts are similar and could be easily tweaked if I'm not mistaken. I have reservations about the Scimitar as that ship is meant to be an extremely powerful dreadnaught. It's also not Romulan design and I'd rather they designed their own carrier in the future with Romulan architecture.
A Morgai escort carrier sounds like a lot of fun to fly though. I'd be nice to have something.