Ducati Omaha's parts search page, along with the parts manuals they have for every year/make/model in Ducati's modern lineup, are probably your best bet to answer this question. With a bit of cross-referencing, you can at least determine if the part number is the same. If it's not, that doesn't automatically mean it's not the same basic part, but if it's the same part number, you've got your answer.
If you decide to go this route, check multiple years in case there was a revision somewhere.
Sprocket Center says they're different. I've ordered 1260 specific hub & carrier+sprocket, so when they arrive I'll compare with the 1199 parts I have already. Parts catalog will likely show different part #'s just because of the different factory chain sizes, but I'd bet the hub and carrier are interchangeable with the 1198/1199/1299