Funny thing: in 2000-2001 I used to write some story (in french, as it's my mother language) called "Chrono Break".
That was BEFORE the name got registered by Squaresoft. You can imagine how I was astonished by learning that.
Of course my imagination and crazy mind (and some friends) were screaming "Kato speaks french, he read you!" I know it's just some coincidence.
Anyway, back on topic.
I think gamers want a third Chrono game (as much as people want a FFVII-remake). It's an awesome saga, but for doing something real good like Chrono Cross was, you need the good people for it. Not only Kato, but all those who made both these games awesome.
As Kato is now back in Square-Enix, there MAY be some possible project like that, as legal rights are owned by SE and that the "Chrono Master" is back there to be able to direct it (if possible).
I dream of something unexpected, some new project directed by Kato with a good team, Mitsuda on music, etc. Yet it's something I'm afraid that will never happen.
So what now? We can still do some things by ourselves, like some fan projects. I'm myself planning to take my own Chrono Break story into some kind of RD-like game, somehow.