And where are Japan Studios now?
Japan Studios was gutted to create Team Asobi.
They didn't shut down Japan Studios. They restructured it, splitting thier internal and external development parts again and rebranding them again.
Before, Japan Studio had different internal teams working in multiple games at the same time and most staff rotated between these teams and the name of these intenal teams also changed over time. With the restructuring all their internal developers got merged into one of these internal teams, Team Asobi.
Their internal development part is now called Team Asobi, and their 2nd party publishing/support part is now called XDEV Japan. With the restructuring both teams got a new and bigger office in the same building where they were expected to grow.
Since the 90s they "Japan Studio" got rebranded, merged, branched off, or moved from division/subdivision multiple times. As an example, Polyphony Digital started as one of their teams branching off to create their own separate team.
Since the restructuring (the supposed closure) of 3 years ago they released:
- Death Stranding Director's Cut
- Stellar Blade
- Rise of the Ronin
- Astro Bot
They are known to be working on:
- Astro Bot DLC
- Prototypes likely to be used in future Astro Bot titles or other future Team Asobi games
- Lost Soul Aside
- Convallaria
- Death Stranding 2
- Physint
So they are there, in the same SIE Japanese HQ they were before. Doing the same they did before.