people i have sended an email to kodak and this is the reply :
Thank you for contacting us with your concern regarding the availability of Kodak Professional Supra Endura Paper for your optical printing needs.
Although many of our roll stock of Kodak Professional Supra Endura Paper has transitioned to Kodak Professional Supra Endura VC Paper, we continue to offer the Kodak Professional Supra Endura Paper in sheet sizes through most dealers of Kodak Professional products. If the dealer does not have the item in stock, just give them the catalog number and ask them to place an order for you.
Please let us know if we may be of further assistance with this or other of our Kodak Professional products.
Kodak Technical Support
IT SEEMS TO BE THAT THE TRANSITION REGARDS ONLY SUPRA ENDURA ON ROLL! the sheet will be not discontinued!