I voted for all the above but I think the ipad mini 1 may stay on the table but the ipad 2 & 4 are gone. Go look at places that sell ipad cases, their shelves are bare. They even have ipad Smart Cover and cases on clearance. I think this is the end of the 2 & 4 ipad.
However....I could see them leaving the ipad 2 up in the education site for schools.