Alright I'm here.
There have been many rumours this month, but nothing ground-breaking. 
First, as everybody has heard by now, the start in Israel seems a deal. It's not official yet, though. The finish is rumoured to be in Rome, coming via train transfer from Turin. For this reason, the last mountain stage is believed to be around Sestriere (Col Basset?) or the province of Cuneo, which in any case have both a very good chance to be the two last mountain stages regardless of the order. For the latter, The possibilities are rumoured to be two: the already mentioned Prato Nevoso and the newly rumoured Lago della Rovina, above the village of Entracque. 
There is also still the chance to have another mountain stage in the third week in Valle d'Aosta, and it should come before those two. 
On the east, Zoncolan should come on Saturday as stage 14, with Dolomites on stage 15. The double Zoncolan hypothesis is already starting to be in doubt, as I expected.
In the Appennines, there's a strong rumour about a finish in Gualdo Tadino, either in the town or at the Rifugio Valsorda, which is on a hill above. 
The re-start after Israel is rumoured to be at the far-south of Italy, either in Sicily or in Calabria.