I think it's not impossible, but I think it's pretty unlikely. I ship them like burning, though. I don't care. (It doesn't help that my first serious, major OTP was Mulder/Scully which did, eventually, EVENTUALLY, become canon, so now I can't help but think that if I just wait the better part of a decade it can happen.)
Re: How likely do you think it is that your OTP will become canon?