As you know, it looks like Yamaha will be coming out with a new arranger generation with Genos. Some of the Korgs are getting long in the tooth as well and should be due for a refresh but probably not the PA4x as yet. I would say you sold the Korg for a reason so...

Not to add fuel to your fire... but as for the Roland FA, I don't know what your goal would be with it, but if you want a great sounding unit that is easy to record with it looks unbeatable. Would be a nice compliment to an arranger.