I don't think this necessarily means the end of the Bravely Series, if Square-Enix and Asano want to make another Bravely game, they can hire the new "Creek and River" company or maybe they can use the division that Square created for Switch games.
Thats what the article says though.
Mobile gameing is too risky, and maybe the 3DS games didnt bring them the "high returns" they wished for.
Their efforts will go into "developing graphics engines and middleware for games" instead.
Necro-bump this 2020: http://gamrconnect.vgchartz.com/thread.php?id=229249
Bumb in 2021: http://gamrconnect.vgchartz.com/post.php?id=9047071