While it does look like 2 different sculpts in the comparison images I wonder if this could just be the difference between a prototype/paint master versus a production (or at least close to it) figure? Case in point: look at the antenna on helmets - they are different as well. If we are to assume that there is going to be a head variant, can we also assume a helmet variation as well? I suspect no for both but stranger things have happened in this line.
The helmet on the older sculpt seems to me to be the last RFT helmet we got (Capt. Antilles was the first to sport it) I believe... I'm wondering if it's what we'll get (it was quite nice IMO), or if we'll get an updated bucket like on the other trooper then?
The helmet could just have been a placeholder for an image though... The heads are very different sculpts though, and why sculpt two heads if you're not planning on using them both? I lean towards yes on the heads, and possibly yes on a new helmet. Or at least the two heads were sculpted with the intent of using them but one maybe got the axe.
But I 100% believe those are two sculpts... I've sat and looked at them a lot, and they've got huge differences between the two, such as the lines in the face, the angle of the eyebrows/eyes, the placement of the eyes/nose/mouth is different... I'm positive they're not the same sculpt, but one maybe wasn't ever intended to be the final one I suppose. The first one almost looks like the old Capt. Antilles figure but the mouth isn't open at all I don't believe.
Or that Hasbro was going with a younger/generic sculpt and possibly Lucasfilm got on them to do the older trooper or something. I hope we get both though... I prefer the younger to the older, but getting Pello would be nice for sure.