Relying on rumor and speculation is not acceptable even on a message board.
I think I hear Pat Cook from a ways down the hall yelling "This looks like another episode of Joseph Gallant Speculation Theatre!"
CBS has a sizable sports schedule already -- college football, NFL, college basketball, pro golf, NCAA Final Four, The Masters.
College football is not on when ABC does the NBA. Ditto NFL except during the playoffs. College basketball is a Saturday thing except during March Madness, when you have a point (but where the NBA might wanna jump ship anyway, since March Madness outdraws them and makes people forget about the NBA). ABC managed shuffling golf and basketball, but I don't know how much pre-Masters golf they had.
No I don't think CBS wants the NBA. They rather stick with NCAA Hoops during the fall/winter months. I would like to see NBC getting back the NBA. That would be nice to see. Then we can hear that theme song that NBC used for NBA on NBC.
Or rather, "then we'll be tortured with".
NBC, the CW, and (after football season) Fox seem to have fairly clean plates - especially with NBC recently ditching the AFL, which they brought in to replace the NBA. However, they then took the opportunity to expand the NHL's presence on the network. That leaves ABC and the non-Big 3 networks.
It would certainly be interesting to see Fox do the NBA, and also the natural next step, as the NBA is the only Big 4 sport (however defined) Fox has never covered. You ever listen to FSN's NBA music? Imagine that on a regular Fox network broadcast with Joe Buck (imagine him calling NBA games!) or Marv Albert with the call...