well, that's not correct.
Indeed, there are many 737NGs (-600/-700/800/900) on the market, with another coming soon.
But there isn't ANY 737-200 in payware quality, neither for FS9 nor for FSX and only one classic 737 (-300/-400/-500)
There are big differences between the 737 generations, so I do not think, that CS would make a mistake by doing a 737.

But I would agree, that it would be a mistake, if they were doing another NG.