New Fuji X-Pro1 Lenses
Unless it comes with an accessory viewfinder that fits on the hotshoe. Many wide angle lenses for rangefinders that have an angle of view too wide for the viewfinder came/come with them. The X-Pan (built by Fuji of course) had one for its 30mm lens that had a 17mm field of view in panorama mode. It was a bit of a pain but not too terrible to use. In fact I used to have it attached sometimes when I had anotehr lens on so I could see two fields of view quickly without changing lenses.
Whether the 14mm will have a viewfinder, who knows? It wouldn´t surprise me.