No, the ones that Rolis Hlaalu has for sale only drop the Homestead furnishing plans - the ones available at launch of the housing system.

His assistant, Faustina Curio, sells Morrowind furnishing documents that drop the Vvardenfell plans. Many of us are assuming that a year from now, she will carry SS furnishing documents, as the MW ones became available from her about a year later.

So, for now, the only ways to get SS furnishing plans are to loot them or buy them from other players.