It's not just the head, it's a considerably different paint scheme.
L-R: TV VF-1A, TV VF-1J
Ever since I first saw Macross SDF in the 80s I've preferred Max's 1A scheme of the two. I've just now begun buying Macross toys thanks to the Hi Metal line, so I'm really hoping they go all out. Seeing as a Kakizaki VF-1A has been pictured, I'd imagine it's more a matter of "when" than "if" we get a TV Max 1A.