Q: Why are there still Shadows, if this takes place after the True Ending? [POSSIBLE GAME SPOILERS]

Question:
Reviewer Lady Cheshire asked why the TV World is still filled with Shadows, if the story takes place after the game's True Ending.

Answer:
My short answer to Lady Cheshire was that "the peace of a human heart does not last forever, and it was of no small significance that Shadows were found in Yukiko's Castle." A somewhat cryptic version of the answer also comes out in Chapter 29 (posted 9 September 2009), but the TV World (Mayonaka) will be featured in more detail in the fourth arc of the story, and more questions will be answered at that time.

[GAME SPOILERS] - rollover to read
When the team defeats Izanami at the end of the game, they learn that the TV World is basically a reflection of human hearts. When humans hide the truth of themselves, their hidden selves become Shadows; and when they reject themselves, their Shadows become restless.

Since no person can remain completely at peace with him or herself, those Shadows have slowly come back into existence. Kuma mentions in Chapter 29 that there have always been Shadows and that there will always be Shadows...but as long as a person is willing to accept their true selves, the Shadows will remain relatively peaceful.
[END GAME SPOILERS]

A Shadow remains a part of a person even after he or she faces the true self. Chie is learning that as she becomes more of a well-rounded adult, and her Shadow will definitely continue to play a part in the evolution of her character.