I suppose the silver lining is that the game may have extra stuff (a previous trailer showed a new NPC in the Glitzville exterior area that wasn't there in the original), and that may still be kept secret.
I suppose it's little hope to see them re-adding some scrapped stuff like the Sirens fights planned for Chapter 4. Or Beldam being the one who summoned/created the Smorgs to begin with. Or Prince Mush as a bonus boss as many hoped he could've been?
Oh yes, Vivian was certainly top tier, and yeah, quite a novelty too. The first Paper Mario used all pre-existing species for partners, but then TTYD thought to experiment a little. Too bad they scrapped partners for the most part after this.