This CB poster, that I think works at TIFF or her company does, I'm not sure, wrote this:

"Well, I told you we’ll have a Hiddleston movie at TIFF weeks ago and made a point of Guilermo being our darling. Clearer than that would breach my contract." link

The interesting part is that she speaks of 1 film. SO I suppose that might mean no ISTL at TIFF.