I dont have a reach disc, yet i was wondering. if i get ce anniversary will i have the same multiplayer (and forge) as i did in halo reach or will the maps be limited to just the 7 new ones?
I believe it will ship with all the maps and you will be able to fully use everything just as if you had the Reach disc 
thanks guys, Im glad i can finally get an answer
nope, you will only get the seven new maps.