One vast cosmos...I don't think it has been this explicit since 2E.
Two words: Planescape & Spelljammer!
They're doing what, exactly? Reprinting that for 5E?I still haven't forgiven them for "Warriors of Heaven" back in 2E. It seems to me that they are repeating that offense.
I liked the 2E unified cosmology, as I think that cosmopolitan meta-settings are vastly more interesting than a dry, singular cosmos which seem to exist solely to say "stay on your mortal world; that's where all the action is."
They're doing what, exactly? Reprinting that for 5E?
They assigned deities from all settings (including the Known World/Mystara, which had its own distinct cosmology) to planes on the AD&D "Great Wheel" cosmology --
It's been six years, but I still can't wait to hear more about how WotC has ruined Planescape for you again.It's one step in the right direction at least.
Eberron is a self-contained universe whose planes don't correspond well with those of the Great Wheel. Changing the number of planes in the Eberron universe breaks the Baker's Dozen, which is a significant pattern in the setting; in 4E Eberron, it was tolerable to sort the planes according to the World-Axis cosmology (e.g.: Fernia and Risia are the "Elemental Chaos", and Daanvi and Shavarath are in the "Astral Sea"), but adding The Nine Hells to Eberron broke the pattern for no good reason.They then moved things away from the great wheel...now they move it all back, including Eberon, which was never there?
I'm of the view that the multiverse can't truly be mapped, and that a cosmology is just a way of seeing/conceptualizing how various planes fit together. All cosmological systems are valid, but the Great Wheel fits because it's so far been the best way of conceptualizing the planes for the vast majority of sages and philosophers, especially those who live around Sigil.