According to Ben Zoma – whose ruling we accept, in that we mention the Exodus every night when we say Kriyat Sh'ma – we will not speak of the Exodus at all during the times of the Messiah. And even according to the Sages, though it will be mentioned, it will be clearly secondary.
This raises a strong question: Did the Haggadah include this dispute simply in order to detract from the importance of the Exodus after the Mashiach comes?! We are all seated around the festive Seder table - is that the time to minimize the importance of out miraculous departure from Egypt?! The answer is that the opposite is true...
[There is a] very profound story [that] alludes to a unique aspect of Shivi'i shel Pesah - an aspect that is central and fundamental to the entire process of the Final Redemption. Is concerns the Chabad tradition that the Besht instituted an afternoon meal on this last of Passover, known as the Seudat Mashiah [Feast of the Messiah]...