Personally I think the people that invested in bitcoin because of its bullish character will change to other crypto's. This time they will due more research about the technology behind it. Still I think the technologies will be overvalued by the market, because of the hype surrounding most crypto. However I don't think the total altcoin market will ever fully crash, it will have certain strong pilars, like ETH, LTC, NEO and maybe ripple, with other coins gaining insane momentum, only to see their value drop as people are devesting and reinvesting at new coins.