Samsung is rumored to announce two more NX cameras and two new NX lenses this year. The new lenses will be a weather sealed 50-135mm f/1.8-2 S ED OIS and a 24mm f/1.4 S ED prime. Samsung is also working on a new 300mm f/2.8 lens, but it will probably be announced in 2015. The new NX camera models for 2014 will be an entry level NX version and a new NX3000 with an AMOLED display (see the diagram displayed above). For 2015 Samsung is also planning to introduce a new high-end NX camera (positioned at the top of the diagram above).
Another report based on a recent article from the German magazine Fotomagazin indicates that Samsung will introduce a new mount (full frame?) this year.