I like your optimism, but don't count on the first 2. I'm with you on your "boldest prediction", but think it is more likely than the other 2.
OC county health officer said yesterday that when we come off the watchlist, the STATE will still have to approve sector by sector reopening and that the plans will be developed in conjunction with the county health officers. He also said he does NOT think any new business reopening should happen before schools resume and that we need to see how that goes for "a few weeks" before reopening things like bars and restaurants, to make sure there is no major increase in cases from schools being opened. They don't want the hospitals to become flooded again and not know what contributed to the new cases. So, remembering that schools cannot even RESUME until we have been off the watchlist for 14 days, we are talking likely 1-2 months from coming off the watchlist to simply reopening dine in restaurants and places like malls, movie theaters, salons, etc. THEN, if all goes well and cases still haven't spiked, maybe a month later, theme parks will get the green light, so most likely timeline for DL appears to be November 1 or later, and that is assuming we get off the watchlist within the next week.
Someone reported (here or elsewhere on social media), incidentally, that Disneyland management is currently targeting for a November reopening.