Depends on both the reviews and the price. Also the Quattros never seemed to have the full resolution advantage over Bayer that the 1:1:1 chips have so it wouldn't surprise if it had slightly higher resolution than the H.
Well, if it does, and I seriously doubt that, based on what I've seen between the SD1 Merrill and the SD Quattro, then I will get one too. I think the new camera will be better than the SD Quattro H in many ways, but only by a little bit (i.e. a little less noise, a little finer per-pixel image quality, a little faster operation, a little bit better viewfinder, a little bit bigger raw shooting buffer, etc.). The kicker will be if it has a tilt screen or Wi-Fi . . . or both. In that case I might consider getting it, and I think Sigma might realize that, and go ahead and include such a feature. What I'm really hoping is that Sigma decides to revamp their thinking a little over the next few months, and adds another 6 or 8 megapixels, producing a sensor that captures 28 MP per layer instead of 20 MP per layer. That's a 40% increase, but still will produce images that are significantly less noisy than the Merrill. Such a camera will out-resolve the 50 MP cameras out there, and I think that would be a key to Sigma being seen as a major player in the high-end camera market. I think it would also mean they could make the price another $500 to $1,000 more, and very little extra cost. But I guess maybe they plan to be more conservative this first time out, and then step up to such a sensor in a few years. I hope I don't have to wait THAT long to get a more significant upgrade from the SD Quattro H . . . but if that's the way it is, so be it. I do wonder if this step means that they might make Quattro sensors between 1:1:1 sensors, skipping a generation each time. In other words, if you're a Quattro proponent, then you would have to wait, skipping a generation, to upgrade your camera to a new model, and if you're a Merrill proponent, then you'll have to wait, and skip the Quattro generation, in order to upgrade to a new model. This would allow them to have Quattro and "Merrill" cameras on the market at the same time, though the latest model with always be one with either a Quattro or a "Merrill" sensor. This might be a very sensible strategy, especially if they start producing a new full-frame, L-mount camera every year or so. It would allow people who like one flavor or another to upgrade every couple of years, or have to wait at least four years to upgrade, if they want to skip the latest generation of camera with their preferred sensor type.