I think it is good news that the 166 replacement will be RWD as it has more or less been proven that any car larger than the Mondeo class suffers dynamically with a FWD platform.
But should Alfa's smaller models be RWD? I don't think it matters as i don't think many punters would care. FWD cars are as capable as their RWD counterparts from Mondeo size downwards, and this has been exemplified by the fab chassis of Fords. Many will say that part of the Jag X-Type's failure was it drivetrain, but i think its poor sales had more to do with the old-world style of the car than its lack of RWD. Do people who buy a Merc A-Class care that it's driven by the front wheels or the 1-Series buy the rear?! If other manufacturers can do wonders with FWD chassis, why can't the FIAT Group? True, RWD offers slighlty purer handling and steering but it is not the solution to Alfa's dynamic failings.
However, an car with Alfa's style based on the XF's platform sounds delicious. What i found odd though is why Ford never based the in-house rival Volvo S80 on the Jag's platform as the Swede handles and rides like a soft cushion.