The 2014 WBC event will be held in Rimini, Italy, just north along the Adriatic coastline from Nuova Simonelli's headquarters in Marche. Rimini has loads of beaches, beautiful ancient Roman architectural wonders, and modern amenities for the seasoned convention-goer like yourself. Though Rimini itself is small, there's no shortage of fun to be had along the Adriatic coastline, and destinations like the NS factory & museum in Marche and the sovereign microstate of San Marino are just a short drive or train ride away.
As previously announced, the 2015 WBC will happen in Seattle, Washington, in conjunction with the 2015 SCAA event. No, USBC baristas will not be forced to double-compete at this event; a stand-alone USBC event will be held earlier in the year, though details are not yet confirmed, because this is like 2 years away people. It'll get figured out.
The 2016 WBC event will be held in Dublin, Ireland. World Coffee Events is based in Dublin, and perennial Irish Barista Champion / Tamper Tantrum guru Colin Harmon lives there, so what else do you need, really? This gives Dublin 3 full years to open who-knows-how-many news cafes in advance of the WBC event. Plus, have you ever been to Ireland before? We haven't, but Sprudge contributor Julie Wolfson has, and she published this corking interview with Colin Harmon over at Cool Hunting back in 2012 – it will make you want to go to there.