It seems the charges expire after a year. As per https://laws-lois.justice.gc.ca/eng/acts/c-46/page-98.html#docCont https://laws-lois.justice.gc.ca/eng/acts/c-

It seems the charges expire after a year. As per https://laws-lois.justice.gc.ca/eng/acts/c-46/page-98.html#docCont https://laws-lois.justice.gc.ca/eng/acts/c-46/page-98.html#d...: (4) However, if the Attorney General or counsel does not give notice under subsection (3) on or before the first anniversary of the day on which the stay of proceedings was entered, the proceedings are deemed never to have been commenced.