NCSoft is simply not interested in letting go of the IP either. There were two offers they turned down, and two more investor groups didn't even get a reply.
I generally agree but there are only a few companies in the world with the money/influence to make people the proverbial 'offer they cannot refuse'. Disney is one of those companies.
If this happens, it will be based on two major assumptions.
The first is the one we all know. NCSoft has a history of never letting go of an IP. Unless they are willing to change that, nothing the Mouse can do will have an effect.
The second is whether or not Disney is willing to buy the property. For those of you not familiar with their corporate style, they are no longer among the most innovative of companies. In fact, they have developed the reputation of being very conservative (not politically) and waiting to let others prove a concept before they dip their toes in.
Part 2a is whether Disney is willing to make an offer big enough to catch NCSoft' attention. Having said that, they do have the ability to buy up NCSoft stock and make themselves a major influence but, once again the question is, would they?
Disney is known for running themeparks and an MMO is the ultimate in virtual themeparks. They even have a few online games under their control (Club Penguin, Marvel Online, <sort of> SWTOR) so they already have some experience. That may increase their willingness to do so.
City of Heroes is an already established property so they minimize their risk and it's already a family friendly property (no worse that the PoTC franchise) so it could fit into their established niche.
If they were able and willing to buy the property, the most ideal situation would be that they let it operate as a semi independant entity like Pixar and Marvel.
I would not mind if Disney did buy the property. The question still is, can they and would they?
/em ramblingthoughtsoff