If major altcoins dont go bullish again before November should investors sell and stay away?
Yes, most likely, that if by the end of the year the crypto currency is not significantly raised in price, many of its holders will sell their coins and tokens and leave the market. In general, this is not desirable. as this will somewhat lower its popularity and it will take some time to restore it. However, on the other hand, we now do not need a very sharp rise in the market, because the situation of a year ago may recur.