No to a chromdome version of CC? Come on Carl you would cave like that freeway in Minneapolis if they made him. I know I would. People have to remember this type of figure (cool color/variant around Spooktacular) makes perfect sense based on SSC's history. I dig it. Throw a black cape from the cape master himself Drizzle and BAM! the Cobra Sniper would look that much cooler.
I wouldn't consider a helmeted Cobra Commander a variant, because almost the entire figure would have to be different from what we've already got. New head (duh), new uniform, gloves, removable cape, etc. Pretty much the only thing that should be re-purposed on that one is the vintage style gun.
So, yeah, that'd be much different than these Cobra Troops or CCC, which were clear variants with minimal changes or simple color swaps.