This Shabbat is known as Shabbat Hagadol. There is no additional Torah reading, but there is a special Haftorah.
The name "Hagadol" which means "The Big One" refers to the days preceding the Exodus when our ancestors were readying themselves to bring the Korban Pesach and finally be freed from slavery.
The way the calendar falls this year, we have almost a full week from Shabbat Hagadol until the first Seder. I think it behooves us to take a cue from the Chumash and prepare like Bnai Yisrael did.
Yes, we have the cleaning and the cooking and all the details to worry about. I would highly encourage every single person, young and old, to dedicate time this coming week toward preparing for the Seder in a meaningful fashion. Pick up a Hagaddah and prepare an insight that you can share at your Seder. Come up with a good question or topic for discussion. Make sure every person at the table has something to say.
You will not regret it!