No offense, Ian, but the LAST thing I want Roland to do is come out with an arranger that compares to a PA2XPro or T2...

If I wanted something like those, I would already have them! The thing I love about the Rolands is there DIFFERENCES from the others. Sound quality, OS (in part), build quality, action, drums, pianos, organs... These are already far ahead of the competition (IMO). To be honest, most of what I want in a new Roland is the return of a few features they have dropped (that no-one else has, anyway), and then I'm good.
Apparently, the main things I like in Yamaha's are all proprietary and patented, so there's little chance they are going to be added. I don't want or need MP3 features, although the ARE starting to go down that path by adding them to the new E80 OS (another ADDED feature, not a new model). Rudimentary, admittedly, but it's a start.
I've said many times, I had my G1000 for nearly ten years, never played anything while I had it that I liked better until the G70. There's NOTHING out right now I would change it for, and it's doing a bang up job and making me good money... So, no rush at all. If they NEVER come out with a successor, my G70 should last a good long time (build quality has it's uses!), and K & Y are going to have to change quite a few of THEIR features for me to want to jump ship (including a 76 in Y's case).
Many OMB's put the Roland's down, but that's not my primary gig. For the combination of live band and arranger and sequencer use, trust me. If I REALLY wanted a Y or a K(org), and their sound, I would already have one.
Nothing is perfect, but for what I do, and the sound I want to project, the G70 is still, despite it's flaws, FAR better than any alternative.