replying to the OP, I think that the probable corrolary of not
reimposing slavery in Haiti, would be that Napoleon also does not bother to implement Talleyrand's goal of demanding Louisiana from Spain. Louisiana grain was to complement Haiti's plantation produce in Napoleon's OTL scheme. A Napoleon who things reimposing slavery is too difficult or not worth the cost is unlikely to think, even for a short period of time, that Louisiana would a cost-effective investment for France.
I'm not saying it's impossible for him to tolerate the Haitian rebels self-emancipation and still be interested in trying to recover Louisiana, it just doesn't seem too logical though.