Will samsung make full frame for NX series ?

Well, my first thought is 'Who needs FF today?'

Many Still Pros rely on Flash making the FF High ISO advantage not so important as many suggest on this forum.

Just Google 'Photographer Jobs / Wanted' , all the studios will indicate you must have flash/off camera/multiple flash experience.

Imo, Still People Photographers, weddings/events/photojournalism, etc. can get by with APS-C (especially the sensor in the NX1). I am not including Sports in this mainly due to a lack of lenes.

Now, you have to consider the Videographer's requirements of which I am still learning as an adaptable Still photographer going Video. The question is do Pro Videographers need FF to benefit from the high ISO available from FF?

My answer is 'No'. Almost every studio shots video with a Pro Camcorder.

Some studios are using DSLR's for video out of the convenience, when lighting is good.

All of this suggests to me there is not enough of a market for Samsung to enter the FF arena. Capitalizing lens manufacturing would be prohibitive and very risky in the face of current competition, never mind R&D for the camera and sensor.

I think Samsung chose ASP-C as their playing field when they stated their mission was to lead the marketplace.

They did not climb to the top of the 'Sensor Size' mountain.

They went 'half' way and will cater to those just starting to go up the mountain and to those coming down from the peak.

Samsung, imo, has no intention, ever, of going FF.