Real talk, Shuri hemorrhaged four years worth of sales in four months, she sank the franchise. So, no, she won't be Black Panther. In fact I wouldn't be surprised if in re-writing she doesn't make it out this series. I have a hard time on reflection seeing another book coming out of this, if that was so you'd transfer the subscriptions. Also, there would have been an announcement. They don't always announce cancellations but they do launches.
They should have made Storm the Black Panther for a year. They should have tied it to the X verse. Like Bruce Wayne and Steve Rogers you bring T'Challa back from his injuries after a time. Or had T'Challa missing after the attack and Storm search for him . You don't backburner your most popular character.