Well actually not quite but as I write this on 21/11 they are due to leave Rega on Monday 

It's been 18 months since this was announced however I believe it has been well worth the wait. I heard Mercury/Solis a few months ago at Rega and it is by far the best sound I have heard in that room. Sources were the Naia turntable with Aura phono stage and the Isis CD player into unusual Rega loudspeakers, a version of the RS10s. 

The Mercury preamplifier board and layout has many cues from the amazing Aura phono stage, one of the quietest pieces of circuitry you can ever experience. It has balanced, unbalanced and digital inputs and can output balanced or unbalanced to the matching 168W/305W Solis power amplifier.

Here is a quote from an incredible first review:

“The soundstage was wide and deep. I wasn’t sure I’d ever heard a more transparent picture or a greater sense of kinetic aliveness than I did through the Rega pair. The experience felt unusually physical” - Robert Schryer

 “Before I wrap up, just two final notes I think worth mentioning because they happen so rarely nowadays: the first is that the sound of the Mercury and Solis together brought me back to the excitement I felt at the beginning of my journey when I was discovering all this great new gear. The second is how my wife, in my listening room and unprompted, suddenly danced to the Regas—it was an unexpected bonus. I can only assume it was the pairing’s wide-open sound, effervescent energy, and propulsive rhythm that possessed her” - Robert Schryer

And a quote from Roy Gandy of Rega:

It is rare that a new product surpasses expectations by such a margin but our design team have achieved something truly special with the Mercury & Solis combination.