Change is needed sometimes and anything that is stagnant and not improving can be overtaken, so I would not be surprised if we see some future change in Bitcoin PoW or some better model, but it is certainly not going to be some shitty Proof-of-Stake.
Stagnant? Bitcoin doesn’t need to change.
But Bitcoin already changed many times, from P2PKH, P2SH, SegWit to Taproot which will be activated later in future.