IS Terry Resigned? --- Not unless the price is right. ("right" for me would be less than 4 years, less than $12 million per year)
Is Morris Resigned? --- No.
Is Hayward shopped? --- Danny's always shopping everybody. My guess is nobody bites based on what we've seen so far.
Does Horford opt out? --- Yes.
Does Horford Extend? --- I think he will. (Question is for how much ... ideal IMO would be 4 years, $80 million or so.
What are your takes on if the offseason goes south?
If Kyrie leaves that changes the timeline for the team. The ceiling would be lowered in the short term, though probably not any lower than it's been this season.
I expect that if Kyrie leaves the team focuses on extending Horford and finding a reliable, cost-effective replacement in free agency, which probably will not be Terry Rozier.
The interesting decision point here will be the draft. If they aren't able to pull off a trade for AD at draft time, that means they'll probably be using a bunch of picks. That would mean the roster becomes even younger; that combined with no AD would make Kyrie leaving seem far more likely.
In that scenario, we're looking at a very young team led by Smart, Horford, Hayward, Tatum, and Brown.
I'd be fine with that scenario. It's got to be more fun than what this year has been.
With that said, if things fall apart re: AD trade discussions, I wouldn't be surprised to see Danny turn around and try to trade for Bradley Beal. But, as good as Beal has been, I think it'd be fair to wonder if he's worth surrendering a major haul.