I think Banjoo Kazooie 3 won't be that highly rated with how well received Kameo and Perfect Dark were ...
Beyond that, I think with the sequels in the list the scores could actually be lower because the gameplay simply doesn't feel as fresh and new as it once did; at the same time new series can also be pretty hit and miss because the elements they cange may be ones people like/dislike.
One last consideration is that on ocassion games have received unusualy high scores because they're the first game that pushes graphics to the next level. FEAR for the PC was one of these games and beyond the graphics did not really "earn" its score; the follow up game will (probably) not be able to make as large of a breakthrough being that it is a multiplatform release so could receive dramatically lower scores.
