It seems like the Union Square Subway (sandwich place, not train station) is my place to spot new flavors of Sun Chips. I found another one there last week. This variety, Sun Chips 6 Grain Medley Parmesan Herb, claims to contain "corn, wheat, oats, brown rice, buckwheat, [and] quinoa."
They tasted like parmesan, sure. Herbs, too, I guess, in that indiscriminate "flavored chips" way. But quinoa? Buckwheat? That's a stretch.