Now that all of that has been solved, it wouldn't be beyond the pale for Dan and Ed Jr. to end up in some sort of battle royale over Ed Sr.'s care. Dan and his dad never really got along, and he was not supportive of his romance with Crystal, so it would make a lot of sense (to Dan, at least) for him to not want much to do with his father right now. Ed Sr. has another, younger, family who can take care of him, and (as we all know) Dan has plenty problems of his own at the moment.