Possible Age of Sigmar GamingBoard release?

Full age of sigmar board, with unreleased terrain?

This weekend i was at warhammer world and noticed they had a fair few Age of Sigmar tables around for you to play on. They were made up of the same 3 or 4 tiles so i have taken a couple of pictures to show you what they look like and it even shows some possible terrain releases for the future. I didn't think much about it at the time so i only took a picture or two.

Sigmar specific details

It just seems odd they would have them with out releasing them for purchase, so maybe its a future release? what do you guys think?

Sigmar bridge