Well, I had a prediction just hours before the Federal Budget was announced yesterday that the $10 bill would be removed from circulation due to the recession and the fact that a lot of $5-$10 purchases will most likely decrease greatly due to the many national businesses that are closing this year. Apparently, there was no mention of the $10 bill being removed from circulation this time around, so our $10 bill is safe - at least for now. But I still think it will survive only a few more years, as the demand for such banknote has been declining for years, and still counting. The BoC may even issue a press release announcing that the $10 will be removed, and it doesn't have to be budget related.
After all, the BoC did issue a press release when the $1,000 bill was being removed from circulation in May 2000, and I don't believe it was announced at the Federal Budget that year.
Either way, I'd be surprised if the $10 bill survives the next banknote series, which (the next series) is due out in a couple of years time.