Pontious - CDF = Cortina D'Ampezzo - or do you mean Cardiff (CWL). Sorry, just in a very pedantic mood tonight.
Would service continuations really work - surely it would be much cheaper to feed in using someone like Flybe?
The whole point on going via Dubai is that you get to connect somewhere that's a pleasure to use, about half way through the journey (nice time to stretch legs), instead of making a short hop, then a long jump. Adding any extra stops would negate this advantage quite rapidly - CO haven't done it, why would EK?