I hope not...
(In my recollection) TLC has never done this before.
Yes, they have re-released older models with modifications, but never a "new" model.
I think the work it would take to modify the Republic Cruiser to a RBR would be to much.
Another reason would be the expected prize which is doubled.
If they were to modify a set to fit minifigures than it would would be UCS version.
Yes, that would mean rearranging the whole ship, but in my opinion that would be easier than rearranging the Republic Cruiser.