Let me start with this thing doesn’t have any business with bitcoin network, the bitcoin doesn’t know or care about anything related to how you access you bitcoin on the blockchain, how your private key or rather seed phrase that is supposed to be use for this been handle doesn’t actually concerns the network
Technically it can through Bitcoin script
A programming language that helps in creating complex transactions involving specific conditions.
Conditions like one OP is speaking about.
I know it sounds wild—maybe it requires some kind of clever cryptography or smart contract wizardry—but I wanted to put it out there and see if anyone has brainstormed anything similar.
What I can think of is using Bitcoin scripts. One on Timelock
CheckLockTimeVerify can help with that.
One path that would verify your Pubkeys directly Incase of an override and the other path to meet the conditions set by you
Including the wait period which you can measure in block time.