Interesting discovery. The Blu-Ray single releases in Japan contains bonus footage called 'ONE PIECE THE WORLD NAVIGATION'. These have been included from Whole Cake Island Blu-Rays (starting with Syrup Village) to Wano (currently towards the end of Little Garden). They are short 4 minutes summaries of past events.
It turns out Toei have had high resolution rendered videos for the first 206 episodes for a long while. These bonus features use the same video footage seen in the streams and upcoming Eternal Logs…. UNCROPPED!
So yeah this is the best 'official' footage of One Piece (however Episode 1 to 52 will also look terrible no matter what master). Fans are working on an AI generated upscale of 1 to 206 using the R2J DVD singles that will look even better.
The upcoming Eternal Logs are listed as 720i, rather than 1080p…. According to the YouTube and Twitter reactions the Japanese fans seem to be all over these upcoming sets....