I don't think it will reach $100k in 2018 but I wouldn't bet against it.
If you told me BTC would hit $10k or $20k in 2017, I would call you crazy.
So with all this crazy adoption who knows what will happen.
There are always a possibility sir, though that projection is very ambitious but why not? I am very optimistic with bitcoin even though with the current situation. I am used to it already since last year as i am still new and observing it. I know sooner or latter it will recover.