I've heard that rumour so many times - I beginning to think it is only a rumour!
It will be (according to rumours), be a minor upgrade - and will incorporate 2 ROM cards onboard,(fixed) and so having 64MB of Rom on board - with the option to put in two more cards or so, and taking it up to 96MB+ (according to the rumours that is)
I have heard there will be one out in April, but not sure what it entails - it's all rumours!.
I would prefer to let Technics take their time, and come up with a dream machine late on next year. And since technology is always surpassing itself, the future looks good for arranger keyboards.
J5