It looks like BTB maps are all forged (So far)

From what the sprint and halo 5 live have said about BTB, it looks like all the maps we are receiving to start will be forge maps. I’m perfectly fine with this, because at this point, the only difference between a real map and a forge map is the Skybox. The same level of fidelity for the map can be reached in forge.
So far we’ve seen That there will be a Blood gulch remake, a standoff remake, a longbow remake, a burial mounds remake, a headlong remake, and one other remake that I forget. These remakes are more of remixes, modified to encourage the use of thrusters and clamber. The first time I saw the longbow remake, I thought we were looking at Halo 4 anniversiary. Its almost graphically identical; i could hardly tell that it was forged.
What im saying is that forged BTB is a good thing, and hopefully we’ll see some original BTB and arena maps popping up throughout december. I love to forge, So i’m going to try my hand at forging, make half a map, and give up as per usual. The cartographers are really amazing.
Sources: Sprint Season 3 episodes 3-4, Halo 5 live Forge segment. I dont have links, sorry.

Any mention on release of the BTB mode?