I do suspect this is the underlying plot for Discovery Season 3. Yes, the Federation has survived for a thousand years, but survive doesn't mean thrive, necessarily. So then the question is, now that the Federation's been deconstructed, how do you reconstruct it in a way that adheres to its mission, vision, and values that saw it at the height of its influence and well-being for Federation citizens.
DS9 kind of touched upon it with the Dominion War, but it was through crisis. In Discovery it could very well be that the crisis has long passed and people gave up, so how do you inspire them again to unite and work towards that idyllic, utopian future.