It looks like that Apple might be updating the MacBook Pro line after all, as 9to5mac has put up shots of the Best Buy inventory system in which they have placed “Dummy SKUs” for an updated MacBook Pro line.

It has been reported that the MacBook Pro line will feature an $1199 model which happens to be the base price for the current 13 inch MacBook Pro, meaning that the upcoming models would lack price change.

The Best Buy inventory system is showing a March 11, 2011 release date for the upcoming MacBook Pro line, however there are conflicting reports, because obviously these dates are not officially announced.
Macrumors reports:
We received word of the same database entry about ten days ago, but have little faith in its accuracy, as the company did the exact same thing in early 2010, guessing at a March 14th date for new models. The update didn't actually occur until a month after the proposed date.
It should also be kept in mind that a delay in availability of Sandy Bridge chipsets could easily push back MacBook Pro updates from Apple's original target date or these expected dates.
Stay tuned as we will report on new developments as they happen.