Discuss and investigate splitting "enhancement" out of Bugzilla's "severity" dropdown and make it a separate checkbox. (Plus killing "trivial" in that list as even a critical bug could be trivial to fix, it's more or less covered by the "easy" keyword.)
For upstream discussion, see https://bugzilla.mozilla.org/show_bug.cgi?id=9412
Version: wmf-deployment
Severity: enhancement