https://eips.ethereum.org/EIPS/eip-1153
For this particular use case, it would be great to have it in the next hard fork.
EIP-3529 included in London is a regression for transient storage in that it greatly increased its practical gas cost. To prevent future hard forks from making transient storage significantly more expensive or breaking the use case, it's important to create these new opcodes for the specific use case of transient storage.