To be Fair and honest
Btc will go highest high and then will collapse!
Becouse bitcoin dont have much of utility its expensive to exchange in to fiat currency.
Slow confirmations.
But there is solution: xrp is solution Low fees and Fast transactions.
I give maximum life time for btc 2 years then it will collapse, reason is simple expensive fees and slow confirmations.
How high bitcoin will go, no one knows about it exactly. Also there is no future for XRP in the long run and also it is not much popular among the bitcoin holders. On the other hand, Bitcoin will be widely used everywhere in the world.