Actually, Napoleonian decision is a bit more complex than reestablish slavery for the kicks of it : it was less about re-introducing slavery than acknowledging that its aboliton wasn't appliable. It never really was entierely done in Antilles, due to either poor enforcement due to autonomist policies (La Réunion) or British occupation (as in Martinique), and if slavery legalisation was done a bit differently in regions as Guadeloupe or Guyane, it covers similar grounds.
The only french colony where slavery wasn't re-established was the western part of Saint-Domingue (Haiti), as due to the situation, abolition of slavery had direct application.
When it becomes clear that France can't do s**t about Caribbeans, if colons continue to either go more and more independent, if former slaves and freemen continue to go more and more independent, there's no much room : colons managed to keep most of the real economical and political power, and any french affirmation of power is likely to pay lip-service to colons especially when plantation economy was what made the interests of Antilles.
We could imagine a radical France (let's say that jacobins from the Club of Pantheon manage to secure their electoral victories shomehow) pushing for such edict this late (@Jonathan Edelstein pointed it was attempted before), but not only it would have zero applicability (less that Royal Navy would intervene, Royal Navy was already there), but would definitely cut any chance of French recover of the region.
Colons will pull an autonomy protected by Britain (some sort of Britto-Antillais commonwealth), while Saint-Domingue could possibly be as successful against Britain that it was against France (I doubt Britain would have nearly the same incitative to pull an expedition there, tough) but becomes a de facto largely autonomous region.