I think "the market" is coming to realize that RC4 will be at least a few more weeks in the making - when one reads the testing thread at darkcointalk it certainly seems that way at least. Most people are too impatient and fail to understand that darkcoin team understands how important it is to get RC4 working right before release and want to have a perfect product this time. That being said, it would be nice to get an official progress update. Non technical folks could read this
https://darkcointalk.org/threads/rc4-testing.1830 and think that nothing is working properly at this point, which I do not believe is the case.
There is no rush to sell anything now when you can sell for double/triple or more very soon. The price is reaching its bottom, after which there is no way that you will find enough DRK to buy on the market.
If it's delayed for weeks price is going down, there's no way it's going up until RC4 is actually released. In cryptoland 'weeks' is an eternity.