Sadly, no. It's set between seasons one and two of their adventures.

Actually, in the BTS, Nick basically says (I am massively paraphrasing what I heard on Friday, so I'm probably getting it wrong, but), "We had to kill her off, or we would have just written them forever, and we sort of couldn't do that." (due to Sheridan's career, etc.)

I think it was Briggs who said that, anyway. It might have been the other guy who created her, whose name is escaping me.