On Hylgia Plane Shifting out

[Riftwolf]

An oft-overlooked rule with Plane Shift is that you need an attuned focus to travel to another plane (and its a different focus for each plane). If a particular plane doesn't fit the next Material Planes campaign setting, the Gods could cut them out and make sure no one from an excluded plane can get a focus for the new Material Plane and vice versa.
Edit: after rechecking the rule, it doesn't use the word 'attunement' in the SRD; the plane is dictated by size and metal of the focus. Point still stands, however, if the Gods make a new metal on the new Material Plane that didn't exist in previous worlds.