As I think BNB is not the next Bitcoin, BNB growth is due to how to manage and control its price level. BNB can be considered a trust and supply for Bitcoin growth later on.
BNB is one of the best coin right now but i dont think it will be the next bitcoin because bitcoin will never be replace by other coin as the best crypto but i am really sure that bnb will continue to rise and will definitely became stronger over many altcoins.