Could 343 bring back more permanent playlists

As a more recent player to Halo 4, I wasn’t able to play game types such as Dominion, Regicide and Extraction to the fullest in matchmaking. If 343 converted Heavies into a permanent playlist, it would be cool if they could bring back the original playlists as a permanent addition to matchmaking as well. Thanks!

I love each one of those gametypes. Honestly, I played nothing but Dominion playlist until I got every commendation for it.

If they brought them back permanently I’d hope they would add new maps and new gametypes to keep it all fresh.
Slayer, SWAT, Flag, all that is always good but I miss goofy gametypes like Headhunter and Juggernaut that seem to have been swept under the rug.