GG have also released a bust of Thorin as an exclusive bust, so if SS had a licence of any sort for the Hobbit surely they would have had an exclusive up.
Plus UC have announced they have the license for the swords and what's coming first.
So even if SS didn't have something to really show, if they had the license, I very much doubt they would keep that news to themselves during SDCC.
As such, I think it's very likely that Sideshow don't have a Hobbit license at this stage.