Damn it, still need to replace my 360, but I guess I'll be buying an Xbone this year after all. Nice to see all the content under one unified multiplayer suite, it's something I had wanted since Halo 3 was announced.
One thing that concerns me is that with all this content, I sure hope the population is healthy enough to support it all. Halo 2 was huge at the time because it was the only game in town on a console. Halo 4 MP only got better with updates, but there aren't enough players to properly support the matchmaking system in place. People have been saying Halo 2A would bring the population back for years, but I have my doubts.
Still, very nice to have it all under one roof.