The worst case for Bitcoin is probably the rapid development of other coins, Bitcoin cannot keep up, so bitcoin prices cannot increase but continually decrease.
Even though there is rapid development with the Bitcoin, there is less possibility for other coins to have a community like Bitcoin. Bitcoin is always the dominant currency because the majority of the investors still have high hopes of Bitcoin compared to others because other coins price is dropping very hugely.
For hodlers since trust in bitcoin will be far less as an investment. But for the utilization of bitcoin,
it's a sign of normalizing the price range and possibly showing bitcoins potential as a payment system.