There's a decent chance. Contact Apple Support. (iTunes support)
I had an external dive with some TV shows on it, and it quit on me. I thought I had lost two whole tv seasons. I contacted Apple, and they added them both back to my queue.
I might leave out the part about deleting them... I'm not sure how understanding they'd be if they thought it was an intentional act on your part, but for the most part, they've been pretty understanding when I've had to deal with them. Sadly, it's been more than the once. Between iTunes and general hard drive stuff, I've had to contact them four or five times about individual episodes or equipment failures, and every time, they've been helpful.
I hope that helps!