I personally don't think the Violis were ever Todaro crime family members. That being said, if they did switch over to the Luppino crime group, which were rivalling the Todaros in Canada, that only adds weight to the notion that the Todaro crime group in Canada is defunct.

If there are OTHER members of the Todaro crime family that are working alongside the Luppinos, then that does not mean they are automatically Luppino family members. The feds are still obliged to label them from the original family that they were made into. See, Joseph Gagliano, Billy D'Elia, Eugene Castelle.