Would be waiting for final combined mode pics as well, the existing combined mode is very satisfactory to me. Plus because the Maketoys transformation is different from Hasbro's (much tighter in some areas), the stickers might get damaged.
I wonder if Maketoys will do a secondary head for SG Magnus-Tanker with the skull face at the last minute? :) Similar to their revision of the original and the last minute head change with Green Giant.