"you precisely can have your most trusted people attest to your new key" that's what you said, and that's exactly where the fork is buried. Assuming of course that you want this attestation to have some technical bearing. If just for warmth and funsies then no fork is needed.

i do want it to have technical bearing, but not beyond what the protocol currently supports. and this is already much more than in view:

Brainstorm

we're basically there.