I don't think this image was as well circulated.
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Based on the EU permits, the DK expansion construction is very clearly underway (the area of construction aligns well with the show building and coaster maintenance bay). Which I guess reaffirms that it will open in USJ first.
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With how quickly they managed to go from site prep to the finished product for the first part of the land, I'd hazard 2022 may be the goal for DK.
This also brings to light how overtly Nintendoland is designed for USJ first and foremost. Using all available space there.