It would be nice, but I still think arrangers and synthesizers are still two different cultures, the mentality of many arranger players to have everything available in a convenient way without any confusing structures is so different from that of a synth player who wants to create sounds, layer flexibly etc.
I know that Yamaha has reduced their departments to only one for arrangers and synths, but that's a cost-saving measure, I don't think it means arrangers will adopt the complex architecture of synths.