Working on a solution to a problem that involves publishing pre-generated transactions for future use down the road. Post EIP-155 transactions have poor support in solidity (ecrecover has uint8 for v value) and in some external tools like ethereumjs-utils… So I’d like to use pre-EIP-155 transactions. (Don’t worry. There’s no replay risk.)
What are the chances pre-EIP-155 transactions will ever be completely invalidated?