One of the things I picked up on in the Scott Kolins interview was when he said

"For Guardian I like the angle of his eyes to mirror the angles of the maple leaf Flag pattern then offset that with the flat cut of the nose area and the rounded flowing contours of his anatomy. I don’t like Guardian to have a Dr. Doom triangular nose - makes him look less sci-fi to me."

The fact that the name Guardian is still going to be used is good. Either it's in homage to the fallen Mac by whoevers in the suit, or as I like to think, it's the man himself.