Is The Iron Fortress Removed?

Patch notes states Colonnade is being removed, but there is no mention of The Iron Fortress being swapped to a different map boss. Is it and other items like it being removed with their corresponding maps?

I really hope not as I love to play around with stat/strength stackers.

Then again what I saw of the skill tree doesn't seem to have the big stat nodes on it...so maybe stat stacker builds are dead this league?

"Additional targets for the following Prophecies have been added as their original targets can no longer be found on the Atlas: Battle Hardened, Burning Dread, Darktongue’s Shriek, and The Malevolent Witch."