My bet on this is Bitcoin will never ever go to Proof-of-Stake consensus algorithm. It already has the superior and decentralized PoW. See how durable and impregnable the blockchain ledger is for the last 12 years? Still cannot be hacked, the security itself underlines the effectivity of PoW as very much strong and cannot be manipulated .
I'd bet on it too but the payout is probably peanuts. PoW has worked well for Bitcoin, nothing even comes close in terms of security, still the most important thing for anyone who wants to use Bitcoin to pay and keep value.
At the same time block rewards are still going to be very good at these prices even for the next 2 halvings so that is at least 8 years more if not 12 years with no issue.