If these Atelier demos are any indication of what the NEXT Roland arranger generation is going to be like, I am not very hopeful. If moving on to a totally new sound generation technology makes so little difference I can't even hear it on a web demo, that's not much of an improvement, IMO

Listen to the difference between the T3 and the T1. Night and day. Listen to the PA50 and the PA2Xpro. Night and day. Listen to the G70 and the Atelier. What difference?

New technology flows from the Workstation line, NOT the home organ line. Arrangers were based on the Sound Canvas, then the Fantom technology. When Roland develop a new WS voice technology, THEN we'll see it incorporated into arrangers (and organs).