Well Diki
If you listen to a previous generation Atelier and the G/E series arrangers you will find they sound almost the same, however if you compare them with the new Atelier, then there is a whole magnitude of difference. (Online demos don’t even come close)

That the Ateliers and the Arrangers have different features and prices have no relevance, as they are aimed at different markets.

Finally the sound engine used in the new Atelier will probably be the one used in the next generation Roland Arranger with all the features that an arranger requires, which means sound wise IMO it will blow all the other manufactures out the water, yet you seem hell bent on proving that it can’t or won’t. (Most folks would be jumping for joy that the next Roland arranger will probably NOT be just a minor upgrade, but you as a Roland owner seem dead set against it. Why?)

Bill