I do know that CHCH DOES NOT plan to go dark and this is the email in response to my question...

We have had our ups and downs in the past 60 years of serving the Golden Horseshoe area and with our New owners Channel Zero, since 2009 have tried to get back to our roots to better serve this area. Part of this was upgrading half of our over the air transmitters from analog to HD in 2011, which was a huge capital investment for us.
That being said we have no plans to change our OTA broadcasting services for CHCH in the Hamilton area.

This was from Wayne Rabishaw, the Director of Operations over at Channel 11.

Seems like a waste of money for any OTA outlet to go dark after spending all that money to go digital.