Any of the above and maybe a little of all of the above?
Seriously. Option (c) is guaranteed to be in the works. The only question regarding option (c) is when we will get the opportunity to buy option (c) at Newegg.
The timing of option (c) will determine whether we consumers get left with the impression that it was intended to compete with HD6xxx or merely be the mid-life kicker that displaces GTX4xx inasmuch as HD6xxx is intended to displace HD5xxx.
Options (a) and (b) probably could have been rolled out anytime in the past 3-4 months if Nvidia felt compelled to do so. Kinda like how Intel probably could have released a 990X 4 months ago if they wanted, or AMD could have released a HD5890 if they felt it would have made a compelling impact to their EPS.
So I wouldn't be surprised if option (a) and (b) show up this fall if the timing for option (c) really is shaping up to be Q1'11 instead of Q4'10.
But just as the likelihood of an HD5890 has now gone to zero with the impending release of HD6xxx SKU's, the liklihood of Nvidia releasing SKU's that embody option (a) or (b) will go to zero the closer we get to Q1'11 (which imo is the latest likely date that Nvidia would be targeting to release their 40nm mid-life kicker).
Is that wishy-washy enough of an answer for ya

:biggrin:
Cliffs: Option (c) is happening, period, only question is whether option (c) happens soon enough to internally negate the perceived market relevance of pursuing options (a) and (b).