The Canadian Affairs web site still show the TCX flights to YYZ for summer 2011 in addition to the TS flights. I don't know whether these will operate or not because the TS flights were supposed to replace them. The TCX flights are not available through Thomas Cook as they have in previous years and therefore I don't believe they will operate.
The Monarch flights start in November and are available through Canadian Affairs.
The flights seem to operate MAN-YYZ-GLA-YYZ-MAN