I'm guessing it will reach $25k in 2018, but of course I have no detailed proof. Just my guts as all this positive news keeps developing day by day!
Anything can happen now with a blink of an eye with bitcoin. This year is a good progress for bitcoin though there are so many forks that happened still it did help bitcoin a lot and for sure there will be more of it in the future. Everyone is free to speculate with the price of bitcoin as long as you are not hurting others feeling with that speculation, you should be fine with it. Let us keep that positive news keep alive!