I’m not sure about that, nor do I think it’d be really necessary. If proportions, sculpt, QC and transformation are ok this time around I don’t know what else could be improved; mainly considering we are talking about a toy made after CG designs where there’s not much room for interpretation –as it is e.g. the case of the VF-19s where the original designs involved a lot of anime magic.
Also I’ve heard this time Bandai had the precious collaboration of the guys that help Yamato with their designs (FLEX). Even though I can’t confirm that, if that was the case I wonder what would be the interest in investing lots of money to produce something so similar to what the market would already be flooded of…
One never knows, but I wouldn’t hold my breath…