As pointed out by Nirolak on NeoGAF, what's interesting about this is if you compare it with what the producer was saying before the release of Bravely Second:
Planning for Bravely Third, the potential sequel to Bravely Second, is already underway, according to producer Tomoya Asano.
“It might make you say ‘What?!’ given the timing, but I already have the concept for Bravely Third in me,” Asano told the latest issue of Famitsu. “If sales for [Bravely Second] are good enough, I’m planning to immediately submit a proposal. Please give me your support!”
His response has gone from "we're planning Bravely Third" to "we're thinking about whether it's viable or if we should try a new game". That suggests, if it weren't known already, that Japanese sales of the game were disappointing.
As such, western sales of the game may be the kicker to whether the franchise continues on or not.
