4-door Jaguar concept set for Detroit debut

We have absolutely no information on this Jaguar concept that's scheduled to debut at the North American International Auto Show in Detroit except for the image you see above. What we can tell is that it has four doors and an Aston Martin-like set of taillamps. Oh, and the gauges glow blue. Is it a pure concept study, a glimpse at an all-new XJ flagship or the new XF replacement for the S-Type? Who knows, but we've marked off January 3rd in our diaries as ordered, which is the date the embargo on this concept will be lifted, and are awaiting more info.