In this case it all depends on the cast. If I like the cast I'll want to see more of them. And like Roogle said, it's going to be a sequel they should have the similar battle/class/whatever system or at least stay in the same genre. Going from a turn based RPG to a third person shooter is a big leap.

And since they do something different with each new proper numbered entry, and at this point they could become there own series.