I know
I'd rather starve myself than have to have another guest. There's enough in the game already
This I agree with.
Gouki and Geese were enough. Noctis was admittedly a weird choice, especially considering the nature of his series and the fact that he would fit into something along the lines of Soul Calibur 6.
While at least three or four legacy characters are a good idea, I highly doubt something like that is going to happen at E3 or even EVO for that matter. Strangely enough, there are still some opened slots on the character select screen and on the customization menus. Those slots could be used. But, I still strongly doubt if the Tekken 7 staff members are going to do anything significant.
Mechanically speaking, Tekken 7 is a great game to play. Customizations are a hit or miss among many people I spoken to: Many great ideas, some cool looking designs here and there. Then there are an over abundance of T-SHIRTS, odd color palettes, and some shallow accessories, even when compared to TTT2. It is said that decals are supposed to introduced at some point, based on Flying Wonkey recent tweets but I am not sure at this point. Tekken 7 also has the issue of not giving the player enough to do offline and there is also the lack of a replay feature.
With these praises and criticisms in mind, all we can do for now is just wait. And, periodically continue playing the game for tournaments or novelty sake, unless one is still not too thrilled with the idea of the game.