It depends entirely on what NV / AMD / AIB want to do. HD6870 can easily be fitted with 2 CF connectors just like 5830 was.
XFX 5830 = mid-range chip - 2 CF connectors
Sapphire 5830 = mid-range chip - 1 CF connector
Having 1 or 2 CF/SLi connectors is more about how the company wants to position the product and often what PCB they decide to use. In this case NV positioned GK104 as high-end, but that's the whole point of marketing. From a current product stack, GK104 is high-end since it's the best NV has at the moment. But that's like Porsche releasing a 911 S and holding off on the 911 Turbo until next year or 2014 and trying to tell us that their 911 S is highest end 911...except Porsche doesn't temporarily raise the prices of 911 S to Turbo levels until the Turbo is out.
Either way I don't think it matters at this point since enthusiast gamers will upgrade even for a 35% increase. The greatest consequence is not on high-end users, but low-end and mid-range gamers. We have already seen that with HD7850/7870 where the goal posts have been moved since HD6870 cost $239 and HD7870 (its successor) costs $349. HD7750 and 7770 are just awful. Given that GTX670 is going to drop for $400 or maybe more, GTX660Ti will most likely be no better than GTX570/HD6950. Now, that's the real problem of this generation. All it means is that those gamers will have to wait longer to upgrade at $250-300 price level because HD7850 is definitely not a worthwhile upgrade. The alternative is to pay $400 for 7950/670, which is exactly what NV and AMD want.
However, GTX670 OC ~ GTX680 level of performance at $399-429 is already progress from $550 7970 just 4 months ago