No, it’s not a high-res one and you can barely make out what’s happening.
The image was discovered by Strategy Informer and you can have a look at it over here.
As you can see, the most striking thing in the image is that Garret appears in third-person perspective and not first-person perspective.
We know what’s really happening at GDC in a few days time, when the title is set to get officially revealed.