I just got a near identical email from the same office:I received a response from the Minister of Immigration's Office.
It reads:
Thank you for your correspondence of May 10, 2019, addressed to the Honourable Ahmed Hussen, Minister of Immigration, Refugees and Citizenship, regarding your sponsorship undertaking on behalf of your spouse’s application for permanent residence. I have been asked to respond to your concerns.
I note your wish to be reunited with your spouse as soon as possible. As a result of the current health and safety situation in Havana, Cuba, the Immigration, Refugees and Citizenship Canada (IRCC) office is now closed.
The Department has issued a web notice describing adjustments to our programs and services, in accordance with the announcement from Global Affairs Canada: Statement on health and security of Canadian diplomatic staff in Havana, Cuba.
The IRCC office in Mexico has been designated to handle the Havana files and thus enable IRCC to continue to provide its services as efficiently as possible.
IRCC records confirm that your spouse’s application is pending a final review by officials at the Canadian visa office in Mexico. Nothing further is required from you or your spouse at this time.
While I am unable to provide a precise timeframe for the completion of this application, please be assured that your spouse will be contacted should additional information or documentation be required, or once a final decision has been made.
Thank you for expressing your concerns. I regret that a more positive reply cannot be provided.
The good news...our applications are already in Mexico!
The bad news...no timelines
“Departamental records confirm that this Application was transferred to the Canadian visa office in Mexico City. At this time, no interview has been requested. While I am unable to provide a precise timeframe for the completion of this application, please be assured that you your wife will be contacted should any additional information or documentation be required, or once a decision has been made.”