Canadians needing emergency visa extensions. Just got an email saying it is possible though perhaps for Canadians overseas on a "long term basis"...
VISA EXTENSION REQUESTS
... We recognize, however, that options for return to Canada are rapidly diminishing and that some Canadians are resident abroad on a long-term basis. In this context, the Embassy will, as of April 1, undertake to provide supporting letters for Canadians seeking visa extensions in Thailand. For all such requests, we would kindly ask that you contact the Embassy via email, at BNGKKConsular@international.gc.ca, and not to appear in person"
TLDR : Answer Summary
The Canadian Embassy in Thailand is now providing supporting letters for Canadians seeking emergency visa extensions due to diminishing options for return to Canada. Effective April 1, Canadians residing abroad on a long-term basis can contact the Embassy via email for their visa extension requests.