[StealthyArrow]

This development is a residential and future commercial development south of 14th Avenue, east of Middlefield Road right behind and to the east of Aanin Community Centre. The development has multiple developers, such as Fulton Group and Remington Homes, with Neamsby Investments.
https://pub-markham.escribemeetings.com/filestream.ashx?documentid=2186

Google Earth shows that the development is well underway

 

[innsertnamehere]

I believe this is a former employment lands site that was converted.

 

[StealthyArrow]

I believe this is a former employment lands site that was converted.

I believe you are correct; one of the past plans were to expand the commercial area into these lands, but that was before the community centre was proposed and so these plans have changed. Commercial is still plans for the two blocks fronting 14th avenue, but one or both of them are most likely going to be converted into mid-rise residential.

 

[Paclo]

Additional renderings from Remington:

Construction update photos, courtesy of @Edward Skira :