I think the final design may have some design elements from the "rejected" sketches. The headlights on the yellow one look more proudction ready and the mirrors on the silver one seem more practical.
On the topic of Tada-San didnt he originally wanted to the MK5 to a mid engined car? If this is a preview of the next Supra then I guess he got what he wanted.
I can almost guarantee that after the unveiling of whatever this will be that half of the people here will whine about how it should have came with this and that lol