Whether or not Korg will come out with a 76-keyer, I doubt the delays are due to that. I am sure they would have released the PA-80 sooner if they could have. Now they will have to share headlines with Yamaha PSR-9000Pro and Solton SD1. These big keyboards will attract a lot of attention, whether or not they are bound to sell well.

My guesses are either that the multitasking operating system needs further work, or they are having trouble getting parts at the prices they need to. Maybe the price point for the PA-80 is too ambitious, with a list price under US$2k for a high-end arranger.

A final note: isn't GEM due for an arranger keybaord? Their existing professional arrangers seem dated, but GEM had some good ones for their time. I would love to see the S2/S3 series revived with modern specifications for ROM and styles.