It will probably stay in private, just saying. The reason being is that there isn't enough space for new modes. Plus it's been a long time since they talked about the community playlist.

For example, look what happened to drop zone in the beginning. Drop zone came out then they removed it for infected and that caused an uproar. But some how how IW was able to add in both.

If they do manage to bring out Jugg and other game modes to public lobbies I'll be surprised.

You can always tweet Mark Rubin on twitter and he can probably answer your question more thoroughly.