Filch the Traitor?

[Sarah]

No: HPFGUIDX 55305

I apologize if this has been discussed already, if it has just send 
me into the right archive :)
I was thinking about JKR's statement the other day about how she 
included clues in Chamber of Secrets that would be important in later 
books, and it made me think of Harry's discovery of Filch the squib.  
Is it possible that one day Filch might make a bargain with Voldemort 
in exchange for magical abilities and sell Harry out?
~Sarah