Finally, people can now be at peace with all of this that it's official! I'm glad this was addressed finally, looking forward to the video showing how the master version of the game performs when it comes out.
The actual mastered game is done. People could play and enjoy it from start to end at this very moment.
BUT Tabata and Co are still unsatisfied with the overall polish and want to exceed expectations. They want the game to be almost flawless from a performance and technical aspect out of the box. They want to put up a good challenge against all other AAA games. No huge day one patch needed. On top of that they want to add extra goodies.