The chart probably won't go vertical again until we make a new ATH at $20K. My guess is, that'll happen some months after the halving next year.
Good guess but my guess is it will happen this year.
Basing on the price trend, bitcoin from its dip already increase more than 100%, so another increase with the same percentage would bring bitcoin to $17K usd and I don't think people won't be buying that price knowing it's nearing the ATH. I also want to emphasize that we are still int he first half of the year, if the 2nd half will remain bullish, that would make an easy climb to the top.