The microfiche is available for the 2016 models now, I did all the research this am.

The simple answer is, same 1000 belt as last year except the 1000 turbo.

No Gates belt for the 1000 Turbo

So the new 1000S and XP41000 all use the same belt as last year

The 2016 900 any model all use the same last year belt so once again same Gates belts as last year.

Link to the belts

Polaris RZR XP 900, Polaris Ranger 800 – Gates ATV/UTV Clutch Belts

Thanks,
Todd