The Walgreens thats holding my set said they might hear something later this week on when they can sell them. The manager i talked to said if it were up to him he'd have already sold me the sets.
On a more Lego note, I went back to target to see if i could get the hulkbuster infinity war lego set. When i got there they were no longer on the shelves. I doubt they were sold, but who knows.