User blog comment:NotAGothChick101/Goth's Plans for 2011/@comment-3473686-20110422030217

In the Bitterness story, it turns out that when Alt Heinz took over, the parents (and Candace) vanished.

I thought that in a sequel Alt Candace would show up and turn out to have been trained to work for Heinz, and Alt Phineas and Ferb would have to try to convince her to return to their side somehow. What do you guys think?

(I think the Bitterness thing is becoming it's own canon--it's breaking off from ATSD. ^_^)