I read on bungie today that the next playlist update won't be done until Sept 5-9. I was hoping it'd be done today with the release of the new maps but I suppose they want to give everyone a chance to learn the maps.

However, the sweetest news in the update is that they'll be adding a new unranked training style playlist... TEAM SNIPERS! That is going to be a frustrating, yet fun playlist. I hope they toss in a couple of small maps like midship or foundation just to make it interesting.