This task item was mentioned as one potential idea in the Developer Summit session T114419 and hence is a subtask of T101686.
From T114419:
Should we have a CR committee? Does a CR committee have sufficient ROI?
This idea is connected to the discussion that the Architecture Committee is having on groups / (sub)teams working on special areas.
A potential Code Review committee / working group could exist for a limited time. (It would be different from a Collaboration working group, see T119030.)
This group would cover social, technical, and organizational aspects of Code Review and work on improving Wikimedia's Code Review process in T78768.
Potential candidates could be @demon, @mmodell, @Qgil, @Aklapper, <insert name here> and any further people with knowledge and authority to move forward.
There was a session about the topic of code review (T149639: Better code review processes for reviewers) at the 2017 Wikimedia Developer Summit.
During that session, consensus was reached to form a code review working group. See action items on the summary page for that session.