I suspect that even if there were, you'd be hard pressed to find someone (even a rep, like RussianHAXOR) which would disclose such info. The Gfx card market doesn't quite release statements to that effect like the semi-conductor arena does.
well i just got a 320 GTS a few days ago, so expect price drops any day now! j/k
i dont think well see a price drop or refresh launch very seen, Ati is making a joke of being in bussiness (inq claims no 2600 till july), and nvidia can afford to keep quiet, all the dissapointed people who were holding out for a 2900xt are doing their job for them