RurouniZel
Asks questions so Ezalc doesn't have to
I'll blame the Rorona 3DS disaster.
I kind of doubt that 3DS Rorona is taking away from new Atelier games considering GUST outsources most of their development anyway and there's virtually no need to plan new stuff for the game outside of the new Astrid part since the game's story and structure are largely the same.
This is likely a "dip their toes into the 3DS space" since Atelier sales across PS3/Vita have been falling.