No other information in terms of specs, date, or pricing is revealed, but it's safe to assume it'll run OS 7.1 and be of the "entry-level" type in terms of hardware. A PTT-like button is visible where some current Curve models have a dedicated BBM button instead. We do wonder whether this convenience key will be specific or changeable.
It's definitely weird to not see the brand name Curve, or any brand for that matter, attached to this device on the promo, specially since it looks like a Curve so much. If it does turn out to be included in the Curve lineup, the prefix 96xx will have been used for 4 different family models (Tour 9630, Bold 9650, and Style 9670).