Just because a world has rich lore doesn't mean you can necessarily churn out multiple compelling stories situated in it. The lore gives context and lends to the initial piece -- simply playing through Braska's pilgrimage is pointless because a) we know what happens are the pivotal moments and b) there is thematically nothing new on offer that Yuna's pilgrimage didn't already cover (esp. because of the inclusion of the Jecht spheres).

If Yuna and Tidus are still a thing and Yuna is trying to protect him by going off on her own to defeat Sin 2.0 then that's even worse of a plot thread. Yuna tried keeping Tidus out of the loop once; he overturned however many decades of tradition and destroyed a world spanning religious institution to save her. Yuna thinking she can actually protect him is completely misguided -- even her naive self from the original game couldn't make that mistake twice. So having her regress into thinking she can just shoulder it all and have people be content with that is utterly smurfing abysmal.

The idea that ordinary citizens would call on her and "force" her to be their hero again is good though. Like, the crushing burden of being the hero; when dangers threatens, the weak rely on the strong regardless of how much the strong actually have left to give. That's like, totally Batman and trout. I can see a strong theme of Yuna struggling with saving the world over and over but whether or not Square Enix can do that without making her a whiny kid who is then talked into being a hero again by some smurfing stupid monologue or something...

Final Fantasy X-3 as a concept does not bother me that much. It's just that I have little faith in Square Enix's ability to create a nuanced story to build on the rising stakes and rising tensions created in the past two games. Where do you go from there? And from what little I've gleaned, the plot seems shaky and fan fictiony/fan servicey at best. I'm not writing it off, but like most contemporary Final Fantasy titles, I haven't got the highest of expectations.