I have heard the issue (I forget. When I heard it) that BNB will surpass ETH as altcoin boss. I don't know whether it's true or not. But based on what I have seen, so many IEOs have succeeded in binance, and the price of BNB has always gone up every time a new project was announced, maybe it will happen. But to overtake Bitcoin? I don't think that will ever happen.
Some projects have succeed to raise the funds through the binance platform and then the price of binance coin looks stable. The growth of binance token still waiting for the news that can create FOMO and people will rush to buy that. The ieo will give short term increase the price of binance but after the traded of ieo token and the price will be falling again.