Honestly I don't even see the need for new technology in these workstations instead they ought to focus on improving it all and making it easier to use . The Oasys has the right idea but unfortunatly there are still some ifs and ommissions .

As for putting a dedicated arranger into the package I don't know if that's a good idea , it would make the bloody thing even more expensive and it's quite possible that many who use synthesizer workstation wouldn't even use an arranger .