The interrelated stories of at least but not limited to EIP1283, EIP1706, EIP2200, EIP1884, ECIP1061, ECIP1078, and ECIP1086.
EIP1283 comes into existence. Has way of net gas metering. Gets Final
ized.
EIP____ ("Constantinople") comes into existence specifying enabling EIP1283 on ETH (and testnets).
EIP1283 enabled on Ropsten and other testnets.
Uh oh! EIP1283 has bugs.