depends on the degree of losing.
if it's a minor loss/draw, the French forces will have an opportunity to maneuver and win the next battle.
if it's a major loss, the butterflies are pretty big.
The battle basically put an end to Russia and Austria in the coalition. Change that up, this version of the war is going a lot differently. I don't think it automatically spells an end to France, but life is a lot different for them. My kneejerk reaction is that France still manages an overall victory, but it'll take them a little bit.
Spain was debating leaving Nap and taking up arms against him, but Nap's surprising ease of victory (I think it was against Prussia a little earlier) backed them off. If things went well enough for Austria/Russia, you might see Spain join them, and even though they aren't really much of a force, they do open up a new front and a can of worms for France. At a minimum, an ongoing war in the east means a completely different scenario for the Iberian invasion.