Possibly. Unless Intel has a set of 32nm quads planned that no one knows about.
Later this year Intel does have a plan to release more 6 cores at lower prices that should compete with Thuban in some ranges for LGA 1366 but none for LGA1156.
But still, I wouldn't be suprised if they drop prices to keep sales flowing. Unlike AMD, Intel has the ability to cut prices a lot and its what they did during the Pentium D days to keep sales up.