I think they're still negotiating something with EBU. IMHO Rai wants host next year's JESC, because there's a huge "media coverage" around Vincenzo Cantiello. He's guest in almost all shows in Italy... Daytime, Daytime-afternoon, Access Prime Time, etc... it never happened, neither for ESC contestants!
So yeah, I think we're going to host the show. Probably they're still negotiating with a couple of cities for getting some fresh cash from local tourism authorities. Some years ago they talked with Turin municipality to evaluate their interest in hosting the event at PalaIsozaki (used for 2006 Winter Olympics), in case of success for Italy.
I think in January-February we'll get an answer. Maybe during higly-watched Sanremo festival?