The problem is that it is hard for me to see an openly expansionist faction getting on the top in France during the interwar period. While there were expansionist voices in France pre war and post war, they were very much in the minority. I doubt that even Charles Maurras and Action Française were expansionist, as after all they mainly cared about putting the clocks back to what they were in 1789 and not about European or overseas expansion.
The expentionism might be a reaction to Germany's own. France ultimate goal might not be so much to add more territory directly to the metropole but rather to create client states (like the netherland described above) to serve as buffer zones.