We have many of those sets already with full lists and some sets with the most popular cards.  You should look them up with the set ID (like CS4AC).  

We have this edition.  https://www.pricecharting.com/game/playstation-4/street-fighter-v-champion-edition

Is that what you are referring to?  If not, please include a photo so I can add correct item.

Sorry, I don't understand the question.  Can you word it a bit differently to help me understand?  Thank you

That is possible on the sports cards website already.

https://www.sportscardspro.com/contribute

Fixed in code.  The update will show up on the site with the next server update, usually about 24 hours.  Thank you.

Closing as a duplicate.  https://pricecharting.userecho.com/communities/1/topics/1002-add-games-for-mac

Closing as duplicate.  Please vote for the existing issue.

https://pricecharting.userecho.com/communities/1/topics/894-adding-a-friend-feature

This is added now.  Closing.

Which toy lines would those be specificially?

Thank you.  We do not track language specific games yet, but this request will be a good one to see how popular the idea is with other users.