An arranger keyboard has always been designed for the home hobby player, (The number of pros that use them are miniscule in comparison (Although the fact that some pros do use them shows how flexible they can be) as they are just the easy play features of the home organ bought up to an advanced level.

Ask any dealer (Off the record) and they will all tell you that the T5 has not been one of Yamahas best sellers, not because it is a bad keyboard, but just because its advanced features (Ensemble section for example) go completely over the head of most home hobby players, thus scaring them off, (With a fair number going back to the T4) consequently adding more features will just make things worse. (A mistake I am sure Yamaha will not make with the T6 or whatever it is called)

I can however see more development of easy to use DAWs by manufactures, so that you can just connect to a range of keyboards via Wi Fi or USB, for the more advanced users.

Enjoy whatever you play

Bill