I bought the S970 in August of 2015, almost 4 years ago. Last year, Yamaha came out with an almost identical keyboard, the S975 with a bunch of new styles that everyone already had on their USB drive, no new voices, almost no new features. I would venture that not one S970 owner on the planet upgraded to the S975.
Anyone think that Yamaha is going to pull the trigger this year? Next year?