Thank you for kicking off the process of the GateSeal renewal.
Having such a power-limited but important one-time panic button is good to mitigate highly hypothetical still should be considered catastrophic events.
I expect that for this to happen, it would require having not only a zk-proof system, but its complete formal verification on the level of bytecode and no more changes, e.g., for EVM itself, which is hard to guess when happens.
Therefore, to me, prolonging the GateSeal protection would be wise and prudent.