Yes, but Supra Endura was first announced as discontinued in both sheets and rolls. Then Kodak announced there will be sheets available until the stock is over, and changed the announcement wording in datasheet. I hope I remember it correctly. You can search the discussions here and you can find Kodak's answer to the question. IIRC, Supra Endura sheets will also be discontinued when the stock ends. According to Kodak, that was expected to happen during this year.
So, when it's over, it's over. Buy it now while you can! It's cheap and it keeps well for years if you freeze it. And maybe if you buy it enough, they'll consider making some more.