Roland have usually used an existing product as the engine for their arrangers. The G600/800/1000 were all based around the Sound Canvas line.

Then they got a bit weird, and the VA and G70/60/80 all seemed to be cobbled together from disparate sources. Then, when they moved downmarket, the Sonic Cell powered the Preludes and GW's (and I think much of the BK series).

Finally, Roland have a brand new module model, with brand new sound engines, and capabilities. The per Part EQ is not new, but an independent insert effect per Part surely is. Perhaps, now that the grunt work is done, Roland's arranger division can go to work adding the arranger hooks to this engine and deliver us something more upmarket without it costing them an arm and a leg R&D'ing the engine itself as WELL as the arranger features.

Personally, though, I am far more worried that Roland will take yet another opportunity to DROP the great features they had (and often invented) while introducing little new. RIP Chord Sequencer. RIP Mark/Jump buttons. RIP the Cover Tools. RIP the Drum Variation buttons (a way to take a drum Part, and reduce it from full drums down to just the basic kick pattern in 4 steps) and so on.

In the meantime, they stubbornly refuse to add Multipads and Break/Fills, standard features on just about every other arranger out there. SuperNatural is simply SA voices in a different dress, and they have a LONG way to go to make it the equal of SA2 or DNC.

Maybe the writing IS on the wall... Roland seem to do best at that BOTL market sector.