Anything can still happen this year, I don't know if btc will hit 100k as previously predicted but am sure soon btc will break that 40k wall to a new ath, it is just a matter of when,
As for btc being overestimated, I don't think that's the case since btc adoption is increasing on a daily basis, so I believe these analysts are making their prediction based on the overall adoption level which btc is right now, and if the trend keeps increasing there is nothing stopping btc from reaching the 100k goal and above.