$25,000 USD is 303% increase of Bitcoins current price of $6,200 USD. Last years bull run from $3,500 USD to $19,200 USD is 400% increase. So if what happened last year will happen also today with no other problem like another hacking incident of a major exchange site or maybe fake news, $25,000 USD is possible by end of this year.
well the important difference to consider is the fact that last year we were in a bull run that was going on without any stop. so that kind of rise was easier to achieve. but now are not in a bull run (i wouldn't call this a bear market either) and because of that such big rises can not happen like they did last year. we need to first get out of this state before seeing big rises again.