I got the same status change yesterday. Like you, I was scheduled for 2/21, after having been pushed back from 2/7. Mine is a Hybrid XL with Co-Pilot 360, hitch receiver, and sliding rear window.
The first three words of the title of their press release are "40 MPG City."
https://media.ford.com/content/fordmedia/fna/us/en/news/2021/06/08/all-new-ford-maverick.html
I sat in this exact truck (HPR Lariat) at an event in July. It looked really good, as the blue on the seats/plastic interior is more subdued in person than I'd seen in most pictures. If I wasn't ordering an XL I would have changed to HPR. I bet you will like it.
EPA approval is indeed used to comply with Canadian regulations for most vehicles. See:
https://dieselnet.com/standards/ca/
Key passage:
An important aspect of the harmonization with US standards is the recognition of emission certificates issued by the US EPA. Under most Canadian...
The new guide now reflects Co-Pilot 360 (Option Code 86B) adding "Mirrors, Sideview – Manual-folding, Power Glass" for the XL trim. This confirms what Tim Bartz has mentioned in some of his videos.