If this is real then this change seems steeped in an especially-American anachronism about African identity. Black Americans make up less than a fifth of American Muslims, and most of them are converts. Among all Muslims, only 13% are sub-Saharan African in heritage. Among all Sub-Saharan Africans Muslims constitute a quarter of the population.
So, really, this comes off more like another Hollywood opportunity to feed into the very small and insignificant, but culturally visible, sect of African American identitarians who rejected Christianity, English names, and Euro-centric institutions, and who created a parody of the black American identity in the 1970's which still, today, feeds into stereotypes and discrimination in the United States.
I'd be fine if he were Muslim and an African, rather than the mythical American idea of a Muslim African-American that they're going to make.