I got a news form a trusted source about the upcoming new EX1 successor:
“Samsung will announce the EX1 substitute at CES on January. The new sensor is a CMOS 2/3″ 12MPx BSI. The body is very similar to EX1 but with an on-body EVF, the same on NX-10, it makes the camera a little taller than EX-1. The zoom is a 24-75mm with mechanical ring control and optional 21mm setting as WB210.The lens has an additional ring with Ifunction like on NX lenses for camera control and manual focus. It keep the swivel amoled screen.“
Sounds like a terrific nice compact camera!