We can only wait and see. There are already altcoins which have been soaring really high for the past weeks. But still the strongest right now is Bitcoin so it is normal that altcoins' rally will not be as strong as Bitcoin. But who knows what happens to them when Bitcoin creates an all time high? Perhaps a lot of Bitcoin owners will sell some for altcoins. When Bitcoin corrects the altcoins will receive the money diverted.
Staying affirmative on some of coins bought early and looking forward for some good run to happen in altcoins. Currently the altcoins season has not yet started it seems due to which some coins inspite of renowned coins are falling and also buying at dips is good thing since once it starts to rise it will be rising very quickly.
Yes, it looks like there is really no more altcoin season happening. The altcoin market has somewhat matured so to speak. There are altcoins which are rising. The likes of XRP, ADA, EOS, DOGE, etc are having some nice double digit growth while the rest are in red. This means altcoins are not moving as one anymore. Each of them are independently rising and falling probably based on their individual demand and development.