The Samsung Galaxy Mega 6.3 is already confirmed to be headed to both Rogers and TELUS (as well as AT&T in the U.S.). You can now add Bell and Koodo to the list of Canadian carriers that will offer it.
While Bell has yet to officially confirm that it will carry the phablet, an internal document obtained by MobileSyrup indicates that it will launch on August 29th. As for Koodo, it has confirmed its upcoming availability via Facebook.
There is no word yet on pricing (but possibly in the CA$600 range outright) and specific availability but you can expect Bell and Koodo to launch it along with other carriers in “the coming weeks.”