This list will keep going until Gears 5 at this rate 😂
From the Reddit for Gears:
We'll be bringing new characters and weapon skins into the game for months to come. There's a lot still on the way. Only 'major feature and map' support has ended.
On top of that, we'll also have new and favorite monthly Versus/Horde events, some smaller improvements, weapon skin challenges, achievements and Ranked Seasons. As one example, OSOK this month has disabled melee which has been on the fan request list for a long time - and is now possible for us to do.
Support for the game is still very much active and flowing, just not to the same extent it was for Year One.