There are many things that Yamato can do to improve the DYRL Roy VF-1S and create a TV VF-1S also. The DYRL can have fixed robot hands just a reduced version of the hands that come with the GBP. The packaging already exists¦ the sculpt of new hands would be easy.
The first release of the TV VF-1S can be a limited production with TV fast packs, bubble hands, and TV pilots. For those that can not afford it all at once there can be a future release of the Valk with separate Fast Packs.
I would be happy to see TV Fast Pack sets for sale. Yamato can even include hands with the Fast Packs. Make future Fast Packs a true upgrade, TV/DYRL Hands based on type, side panels, custom decals. These items exist as a garage industry, just like the VF-1A Kakizaki and VF-1S Max, all Yamato needs to do is package it.