If you're holding your breath, I wouldn't. Even if retailers do end up with a handful of these chips they're still going to be gone in short order as most sites have sold units they didn't have and now have backlogs to fill.
The 3820 is supposed to ship Feb 13th, that might relieve some of the demand for the 3930k assuming it's shipped in bulk (which I doubt).
Your best bet is to setup an email alert with a retailer like Newegg that only sells what it stocks, and then hope you can beat the other x number of people that have done the same.
The 2500K really isn't a viable alternative to a 6c/12t processor. At the very minimum you should be considering the 2600K which is 4c/8t. Even then making the move to 1155 is one that I'd personally be very dissatisfied with after looking at 2011.