hypothetically, Age of Demons happens again, full release. Would overlord influence stop at Eberron? or expand out to warp the planes?
Example: While Rak tulkesh might love shavarrath, could he bring war to Syrannia? Or would he even want to? No. The overlords are part of the metaphysical architecture of the material plane; the other planes have their own equivalents, like the Quor Tarai of Dal Quor or the Architects of Irian. This is one reason the great powers of the planes don’t have much interest in the Material.
— Keith Baker (@HellcowKeith) March 14, 2021
Keep in mind that the overlords did exist in full release for untold millennia before being bound. It’s a big deal for US, but the planes are eternal. But if you want to tell a different story, go for it!
— Keith Baker (@HellcowKeith) March 14, 2021