Recently, some quirky, self-published Dutch gaming site proposed that Mistwalker getting the Chrono franchise might be cool. Then, they reported news that SE was selling two unnamed licenses. Fast forward a day and some quirky, self-published Square Enix news site reports that SE is selling Kingdom Hearts and the Chrono series franchise. Fast forward a day and people all over several boards are ranting and raving.
It's just a stupid, idiotic rumor. It is probably perpetuated by the same people who talked about Chrono Glance last year. Don't believe this stuff, even for one second. Square Enix would not sell the flagship Kingdom Hearts label, and there is no other real news source even hinting at the sale of intellectual property. So tell the rumor mills that started this to go straight to hell.