Icecrown Elite Guards

Would it be possible to get higher-leveled elite guards (compared to current guards) implemented at the all of the bases in the following areas?

Hellfire Peninsula
Moonglade
The Barrens
Duskwood
Stranglethron Vale
Tanaris
Hillsbrad Foothills

Should be possible and pretty easy to do, but it may be considered as a "custom" content so idk if it will be