Babette (Louise Élisabeth de France) was actually willing to do a territory swap - Parma for a kingdom in the Austrian Netherlands - in the 7YW. Her ambition pissed off her sister-in-law, Amalie of Saxony, since it was with the eye to this that Babette managed to pull of a match between her daughter, Isabella (who replaced Amalie's daughter, Maria José/Maria Luisa) and Josef II. However, once Babette died, her widower wasn't interested/ambitious enough to push the idea.
So, it's not unlikely that Louis XV/his son/his ministers could attempt to seal a Bourbon-Austrian treaty by giving up Parma and Tuscany in exchange for the AN. Britain would be pissed, Prussia's got what they want (Silesia), so they can't be bothered to get involved, Austria DOESN'T want the AN, and France DOES. Most likely, Britain will have to wait for a new war, since neither the Dutch nor the Russians are in any state to wage war, Spain's not interested in pissing off France, and Portugal has no interest in pissing off the Bourbon-bloc. Although, the Bourbon-Habsburg alliance would mean an earlier diplomatic revolution.