Believe me or not, but in 2019 there will be no significant bulltrend on broad cryptomarket (the same in case of stocks markets). Only pumps&dumps (bultraps). You expect new bubble after so short time from the previous one? This expectation can lead to failure. I expect new bubble somwhere in 2021/22, after few years of bleeding. But for sure, if You want accumulate some coins cheap now (like XEM) You must also have plan, what if the holding time will last years, not months. Moneymanagement is in this case powerful strategy. Of course You can buy XEM @ 10 or 5 cent and wait for pump. But i am almost sure, that after 2x, 3x or x5 (from dip) pump up, many of speculators will not sell much XEMs, because they will be e waiting for 2 or 10 dollars, in hope for new buble. As i said, there is fast no hope for new bubble in 2019 nor 2020.
Now i expect in November/December some huge event (some bankruptcy of huge bank or something like that i Eurozone). This can give high volatility, and in cryptosphere too. Unexpected, erratic moves of prices are possible, and awaited by me, only from speculator view, not from longterm investor view.