Experts say that it isn't expected so, since one of the things that brought the alt season in 2017 was the surge of new investors who believed Bitcoin was priced too high. This time, it might not be the same. The market is more mature now, and if Bitcoin reaches 20k, then they will think it is bound to reach even more, as many bulls have already made ridiculous predictions, with John McAfee even saying he will cut his manhood.
Nevertheless, everything is possible with crypto, and no one can really be 100% sure about the market in the future.