IMHO,
The chances of DAL selling off CMR or ASA are just about zero.
As previously stated, the WO DCI carriers are the only ones generating a profit for the company as a whole. I don't know for sure, but I'd guess they generate a much larger % of the cash flow/Profit for DAL than the "spun off's" did for their respective mainline owners. This is a big factor.
2nd, in today's current economic environment of investor panic (Look at the DowJones) it would be impossible for DAL to get anywhere near what they paid for the WOs back if they were to try an IPO. The purchase price of CMR and ASA was in excess of $2.5 Billion (with a "B") No WAY an IPO in this climate will get anywhere NEAR that in return. In short, they'd be selling a valuable asset for less than they paid for it. Now granted, they COULD sell off a portion of the WOs, but would the short term cash influx be worth the loss of revenue? That's one for the bean counters I suppose.
Also, keep in mind that the "trend" of spinning off regionals has not met with real success on Wall Street. Mostly because of the above mentioned reasons, but also because of the fact that Wall Street understands that there ARE still scope restrictions in place, and they (some day) will ultimately limit the revenue generating ability of any spun off airline that functions strictly as a code share. Why invest in a company who's potential is controlled by another company's labor group?
ASA and CMR aren't for sale. (IMHO)
On the other hand, what the hell do I know? I fly airplanes for a living.