Facing the rising number of fake 5s and 10s (in despite of supposedly hi-tech anticountereiting features), and since we haven't seen new prefixes in the 10$ since last August, it makes sense for me that the BoC is currently redesigning the 10$ note (and probably the 5$ note too).
My hypothesis is this one: they should get rid of the useless golden maple leaves and invisible latent image. And since they seem to use the same German paper as for the 100$ note, it's logical to use a paper watermarked with Laurier's and MacDonald's effigies. The space freed by removing the golden maple leaves can be used for a watermark (It could be however necessary to modify the reverse design to accomodate the watermark). And a holographic metallic strip (as for the 100s) at the left of the portraits could be put in place of the latent image.
These features aren't absolutely counterfeiting-proof (the professionnals can make very decent notes with watermarks and others security features), but if the can stop any leisurely kid to make easy money, it's a good bonus and should remove at least 90% of fake notes.
If this theory proves to be true (albeit partially), it's could be the first modification of a note since 1954 (modifing the so-called "Devil face" portrait to a "modified one").
If the BoC doesn't takes the good decisions about the security of the notes of this serie (even for the smallest denominations), and if the fakes notes continue to get more numerous, I think that the whose serie should be scrapped and switched to polymer notes.