http://www.gamesindustry.biz/articles/nvidia-to-simplify-product-range
Hopefully this means that if there will be 9900-series it will indeed be G92b based, and GT200 will be something new.
Speaking to GamesIndustry.biz, Roy Taylor, VP of Content Business Development, admitted that NVIDIA's current range of products is overcomplicated and too confusing for many customers. Taylor went on to say the company faced a "challenge" but needed to make its products more consumer friendly.
Hopefully this means that if there will be 9900-series it will indeed be G92b based, and GT200 will be something new.