The latest video on Master Duel shows various aspects of the shop.

One of the first things we see is that there’s a new pack called “Stalwalt Force”, which costs the same as the Master Pack. There seems to be different categories of packs including a “Bonus Pack” and an unknown category.

These two packs seem to cost the same (at least in this development build) with 1 pack for 100 gems, and 10 packs for 1000 gems with a guaranteed Super Rare in the latter.

And a new feature we’re learning about is that preconstructed Structure Decks will also be available, with this one costing 500 gems.

Finally we get to see the accessories. I don’t think there’s any news here. In these captures, the accessories have already been purchased, for just for reference, in the Jump FESTA video, the costs were:
Fields (Volcano): 400 gems
Sleeves (Trishula): 100 gems
Icon (Ecclesia) : 50 gems
Mate (Dark Magician): 300 gems

Of course all of these could change in the final build.

Source.

The next video will be revealed on Wednesday the 19th.