Think of it this way, If they weren't highly considering taking action, they wouldn't have made such a bold statement, so we can assume they will act. Question is, what will they do? To me, there are only a few different things they could be updating the playlist with:
- DLC - Very unlikely, as they are working on Halo 4's maps.
- Horrible Witty Megalo gametype, a la Skirmish - Let's hope not.
- Changes to settings based on feedback - Unlikely, as there haven't been any balance issues or complaints.
- Addition of TU - Ruled out by the post [:D]
- Addition of community maps. -Yes pl0x.
With everything that has happened, it feels a little to coincidental to be addition of Troll Skirmish, where defenders spawn under a bridge with flamethrowers. So we may be getting what we want. I just can't shake the feeling that everything has progresses too quickly, and maybe they already had other plans (trolls under bridges).
Let's just hope for the best, and not get too optimistic about it.