Unlikely.
Firstly you got the bitcoin halving coming up, which has historically meant that markets are bullish for at least a year after the event. BTC being bullish will also drag the rest of the market up along with it, analogous to how a rising tide floats all boats.
Then you got the ETH hard fork, which could turn out to be a positive development. It's not guaranteed, but I do think that it could have potential to affect the entire alt market positively.