Going to make this short so there are no "tldr" thoughts.
Now that we've announced a 3.1 Release Candidate, we want to announce the official change of the name for the MOD Team to Extensions Team. This is in line with the moving forward to extensions instead of modifications, which required edits to the phpBB core. This is both a physical and an internal policies change with regards to extensions. These policy changes will be published sometime soon.