I don't think they have the license to do so. Isn't it Suge and DR that have the rights to do so or did Afeni also won the rights for anything that has to do with Makaveli and Makaveli Records?
They could come to an agreement to call the album maybe something like 2pac - Makaveli (returns)(Tha Don) ... Make the album name makaveli so it will still be called 2pac 4 the casual pac fan.