The Megane is a Front-engine/FWD layout so I'm not sure it will be usable for RWD applications as for the A110 I actually forgot that was a Renualt-Nissan product@BigHeadClan we can't discount that if Renault and Nissan are serious with equal platform sharing, then Renault has a pretty good DCT in the Megane RS and Alpine A110. Nissan is already using a version of that same DCT in the overseas Nissan Qashqai (Rogue here in the states). So there is potential for a re-purposed DCT to make it into the upcoming Z.
but it's a rear/mid-engine RWD layout and may run into the same problems as the Megane.
But you are correct there are some interesting technologies avaliable within the alliance.