Not really. As amazing as CK2 is, it really suffers from being too easy and, oddly enough, predictable. Feudal life should be trickier and more dynamic, rather than just the blob fest most games end up as. CK2 should be that even holding to an area the size of England should give enough challenge to last until 1453.
That would be great. And if it happened your empire would occasionally expand to the size of Britannia and part of Scandinavia, then I would like the challenge of holding to this much larger area to become exponentially worse.