Well, I've just caved and bought the Dornier Do17z & Paul Defiant Dogfight Doubles: http://www.airfix.com/catalog/product/view/id/8414/We know the Dornier is a New Tool as it was released barely a month ago, but the re-released Paul Defiant makes no mention of New Tooling so will be interesting to see how this turns out!
I have to say (and I know I'm going to get shot down for this, but saying it anyway!), the Paul Defiant looks a lot like a Hurricane with a turret slapped into the fuselage, and we've see new tooling Hurricane's this year