Some analysts become very optimistic but somehow they are blind enough to see what is really happening today that could also a factor for an x growth in the future. I agree with $15k-$20k, it is fairly enough with the pandemic situation and truly achievable, but I'd never lost my hopes to see Bullrun run again. However, I was not very optimistic to think about a huge spike, $50k, $100k, and $250k, this will be just a dream at all.
Who are blind will be judged by time, no hurry 
. As per how bitcoin is doing right now, I believe we never need to consider how world economy is doing and where is the current pandemic is heading. Because, bitcoin is a speculative market and it is highly insulated from world economic incidences hence if people find bitcoin will be beneficial for them both in long and short run then definitely they will get into it regardless of how their economy position is doing with respect to their country.$250k may sound unrealistic in your eyes. But, it will happen in 18 months or in 36 months. I am not having any doubts on that. Due to some reason big value for bitcoin may get delayed but never will become impossible.
I'm seeing bitcoin might be heading toward $100k in next 12 months and after that anything will be happening must be considered as bubble and I'm not supporting that through my speculations.