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.
Bitcoin will not collapse and if Bitcoin collapses then altcoin will also collapse, because Bitcoin is the king of cryptocurrency and its dominance in the market cap is more than 60%, then the possibility of Bitcoin will collapse is very small because many people are investing in Bitcoin, besides that in my opinion the reason why Bitcoin has slow transactions and high fees is because many people make transactions using Bitcoin, so the fees are expensive and the transaction process takes a long time, but I believe Bitcoin will definitely find the right solution to improve the quality of its transactions in the future.