Since innovation left the building more then a decade ago, and arrangers have just become more of the same with slights improvements, they stopped attracting new players. They are build for old men and are slowly dieing..

Unless they add new features, that attract younger musicians...

If they create an arranger that combines Ketron audya styles, with Korgs Karma and Ableton lives interface ( or maschines) .... And allow the build in sounds to be expanded with VSTs... And still stay true to the high quallity and reliabillity standards of todays top arrangers, .... Add a huge touchscreen and dedicated knobs and sliders... Throw in a top of the line keybed ( choice of 61, 76 and 88 weighted) ... And add some more feautures that would pull in the workstation and computer musician crowd.... Only then arrangers will be saved.