It's very easy calculation for BNB. There are over 165 millions BNB in circulation. With current price which is around $450 the market cap is $74 billion. Hence, if you're asking if BNB going to reach $5000 price then it's not going to happen anytime soon. There is simply no space at the moment to put such market cap. If BNB going to reach $5000 then its market cap exceed $825 billion which is about current market cap of Bitcoin. The answer is that simple. I think that $1000 in next 2 years is more realistic for BNB.