The changes prescribed in TIP-100 are difficult. Unfortunately, Threshold is facing a difficult reality. No alternatives to TIP-100 are being advanced and my immediate priority is to ensure that Threshold continues to exist in a viable form.
TIP-94 includes a specific carveout for TIP-92:
As specified in the final TIP, development is underway to enable this soon after February 15: TIP-100 preparation by vzotova · Pull Request #171 · threshold-network/solidity-contracts · GitHub
The TIP calls for the inclusion of the three relevant beta operators into the TIP-67 payment plan:
Once the operators are transitioned to a whitelist, the beta stakers will be able to deauthorize and withdraw.