Given the evidence presented, I stand on the side that Orruks will not become a soup book again.
Narratively Gordrakk is off on another quest doing Gordrakk things. The story is wide open for Gobsprakk, and unless I’m missing something their respective grand schemes have both fizzled. I expect at some point in the future Gordrakk will return with a higher power level and a new sculpt. With rumors of redesigned gen 1 AoS characters (Ionus being a recent example), I believe that Ironjawz and Kruleboyz are being left open for another wave.
Big Waaagh was only necessary to retain the piles of intermingled orcs people started with, and while I hope it’s still possible by an army of renown or expanded ally system, it’s one hell of a drain on game design to have units you simply don’t play because they’re instantly less efficient in soup. A lot of people invested in Big Waaagh, so once again I hope it’s still possible, but I think it always had issues.
Now that Orruks have received a bit of a split, I’m starting to look at my Snarlfangs and Spiderfang… The retiring of the spider boss has me thinking…