If Laval wins and Belleville loses to Wilkes-Barre/Scranton, Laval will move ahead of the Sens and get out of last place.
If Laval beats Syracuse in regulation, the Rocket will be 2 pts behind the Crunch, who sit 3rd in the division. And Laval will be 1 point behind Cleveland, who sit 4th and in the final playoff spot.
As I've mentioned previously when looking at the standings, Laval has played the most games. So even if they pass the Sens, get within a point or two of a playoff spot, the other teams have anywhere between 1 to 5 games in hand.