When will there be new packets
I also dont believe there will be enough demand for his ability in Standard for his presence there to matter much, although if Khans is an ETB-heavy set it could do a bit better
So as a whole, I would say its obviously very good for Japan, but more than anything, its just trying to lean into the authenticity of what it represents to that market what the history is with respect to video gaming culture in that region, and making our players globally excited.
Local-language versions of these materials will be added to the marketing materials page at a later date
Just dont expect it to scale quite as quickly, and be ready to invest a bit more mana early on
That being said, while nothing in Magic is guaranteed, fancy foils like these do tend to be quite resilient