Zero rumors. At least not from anyone that knows anything!

In fairness, it looks rather like Roland have given up on arranger development on anything other than hobby/consumer level arrangers. It has been nearly five years since the EA7, and only one OS update and bug fix in the first year of launch.

I would love to be proved wrong, but my opinion is that Roland have left the building. But they went out on two quite good notes... The EA7 is exceptionally good value, sounds wonderful, nice and light and a barebones sampler if you are tech savvy enough to make your own loops and samples.

And the BK-9 is my favorite Roland of all time, giving us most of the G70 with a bunch of great new stuff (audio playback, audio loops, articulated sounds and a chord sequencer) at under half the weight of a G70!

If you like the Roland ‘sound’, either of these arrangers are still worth playing...
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An arranger is just a tool. What matters is what you build with it..!