I don’t expect much, Namm isn’t the place for consumer electronics.. and that holds arrangers..
Maybe Korg will offer a Kronos replacement, altough Korg Japan seems only interested in small trinkets and software, there is a trinity/triton module on its way for Korg Gadget. Maybe Korg Italy can surprise with a pa5x, but i guess thats something for Namm..
Yamahs will not show anything, Montage is due next year(2021) and all other products have a later date.. arrangers in the pro and pro-sumer are pretty new, Genos should have a lifespan of 5 to 6 years.. and the SX series is pretty new... best to hope for is another Montage software update..
Ketron does not visit Namm
Casio will probably show the px-5s professional master key/stage piano follow up... its old...it might have features from the MZX500 on board...
Kurzweil is still pushing their pc4 and forte...
Nord might surprise with a C2D follow up, maybe even a stage 3ex, or some new synth..
Roland will be promoting their recently anounced fantom with a huge software update.. and playable version of the Jupiter X.. they seem to have left the prosumer arranger market behind for now..
All in all Namm 2020 might be a new low for traditional keys...
Maybe some new synths... but thats as best as it gets..