Honestly, SE has actually been doing some good things with game design if Type-0 and Bravery Default show. Hell, I may not like FFXIII but even I will agree it's sequels are at least playable if you ignore the terrible writing.

The other thing here is that SE has said on more than one occasion that a Chrono sequel won't happen unless they can get most of the team that did the previous entries on board, so if they did announce one, it's not like they are handing it over to Motomu Toriyama and Kazuhige Nojima to totally ruin it. So a decent sequel is still plausible if they stay true to that.