Well, this is at Disney World, which has a lot fewer tiers (unless you are DVC or a Florida Resident), out here in California with more tiers, I imagine this gets even more complicated.Thanks for listing this all out! Goes to show that not only is US Disney's compensation the worst, but it is also the most confusing.
May as well just go until Aug 11, ask for a partial refund, and then buy a new annual pass. You only stand to gain from this.
It's as if Disney forgets their passes are priced in tiers for different days of access. If any level of pass is on the same reservation system, what's the point of using your premium pass? Huge downgrade.
Premier passes are going to be strange as well, they will be extended at Disney World per their policies and then once Disneyland reopens extended again per their policies, which I would imagine could result in some time that the Premier pass is not valid for either coast but then becomes valid again for both coasts once Disneyland reopens.
So yeah, definitely confusing to say the least.