I can not see them increaseing the price in dramatic way. I think the 3k rumor just got out there and it has taken on a life of it's own. I did see where some analyst put the new entry level Mac Pro at 3k. Maybe some one just got confused with the MacBook pro. It is easy to do.
Another thing I have not seen much comment on are the leaked size of the MacBook Pro. It is not only thinner, but the width and length are also each about 3/4 of an inch smaller too. I guess they have slimmed down the bezel. That would be very nice.
Where is there a leak on the size?