Since Chevy has brought the Blazer to the LA Autoshow, so new unique characteristics of the crossover have come to light. While it may only be slightly larger than the Equinox, I think we can all agree that the new design language is much more appealing. https://www.trucks.com/2018/11/29/la-auto-show-5-things-2019-chevrolet-blazer/
I don't think there is going to be much demand for the entry level 4 cylinder, as that's really going to restrict the Blazers utility. Maybe they will just consider turbocharging it in the future?