I'm thinking, if I do get another arranger, it won't be until 2017 or so.

By then, we should have some idea of what a Tyros 6(or its replacement) will be. And the PA 4X will be established.

Truth is, after buying the PSR S970, I'm in no big hurry. Each time I gig with this arranger, I'm more impressed with it. For me, it's so close to the quality of my Tyros 4, that it's a joy to gig with.