Sure I would love another free retainer, it might happen with 6.0 but we'll need to wait and see.

For now SE should really open up the entire chocobo saddlebag to all players as it is quite useful for storing different materia's which you know you'll use eventually but don't need at that point in time. To get more players using the app it really needs more features to be added in, being able to send my retainers back out on quick ventures via the app would make it a go-to for me.