A champion is needed for
https://eips.ethereum.org/EIPS/eip-1108
“It can be added to the Istanbul list if someone were to spend the time to champion it. It will also need to be updated with a section on new test vectors (likely just an update for the old ones) and a section on security considerations, since we are adjusting gas prices.”
https://gitter.im/ethereum/AllCoreDevs?at=5cbf16602e2caa1aa6a6b92d
Hi there!
AZTEC is quite interested in getting this EIP into Istanbul and we’re happy to try and push this forward. I’ve submitted a pull request to update the EIP and also to add it as a proposed EIP in eip-1679
Cheers,
Zac.
Original author of the EIP from Keep here, just to register support and thank Zac for picking up the baton here and filling in a bunch of details 
Please let me know if there’s anything I can do to help ensure EIP-1108 slots on in!
Thank you @zac-williamson and @Shadowfiend !!
It has been added to https://en.ethereum.wiki/roadmap/istanbul
@Shadowfiend @zac-williamson it seems @vbuterin proposed a similar reduction here. Can you put that as a reference into the EIP so that we can close the issue?
Done.
@zac-williamson I opened a PR for this on go-ethereum that I can move forward (https://github.com/ethereum/go-ethereum/pull/19904)—shall I take a crack at Parity as well or do you already have something cooking?
I have reviewed this EIP. Everything looks great, no reservations. Good work. I recommend for passage to Final.