BNB run from 5 USD to 30 USD very strongly without taking into account BTC sudden price moves till middle of 2019. After the middle of 2019, all coins without any exception become 100% depended to BTC. BTC up alt coins down, BTC down alt coins down even BTC stable alt coins stable.
While most of the coins found new all time lows, some coins like ETH and BNB stayed strong against others. As other coins dropped 80% they dropped around 50%.
If BTC gave permission to the market like before middle 2019, It was possible that BNB hit 50 USD at the end of 2019.
At new market situation, it can possibly go around 32 USD again, but 50 USD not looks very soon if no extreme news or change at market conditions.
Long term? It will try to catch ETH I guess.