Yeah expect more dropping because Altcoins are growing as well. It is not only bitcoin alone but other players are now competing with it in the crypospace. This is very good for the community as it shows that the industry is growing.
Altcoins also lost value during the BTC's correction. You could see how the whole cryptocurrency market is connected. When our balloon started to deflate every single coin was going down and the ones that had no real life usage and support were losing the most. XRP went crashing down like crazy, same as all the BTC forks.
Bitcoin is losing dominance when it comes to market cap but it's still far ahead when it comes to the price, recognition, usage, regulations and many other things.