What is the significance of the toast after the Passover meal?

there is no toast after the passover meal. There are four cups of wine/garpe juice that are drunk throughout the meal/ ceremonies but the only wine poared after the afficomen is the wine for Elijah the phrophet/ eliahu hanavi. it is not to be drunk by anyone. the reason for this cup is: Elijah said to god that the Jews were not keeping the laws so from then on god made Elijah go to all the Brises and pesach seders of the Jews to show him that he was wrong