The new Throne of Eldraine Holiday Gift Bundle comes with the following: 20 regular basic lands, 20 foil basic lands, 10 Throne of Eldraine Draft Booster packs, a foil alt-art bundle promo card, an oversized Spindown life counter, and a Collector Booster. This product will also feature 'special packaging', which has not been revealed.
The biggest sales point for the Throne of Eldraine Holiday Gift Bundle for brick-and-mortar stores is that each bundle will come with a Collector Booster. The Collector Boosters are aimed at Magic players who want higher-end cards for their decks, and these boosters come loaded with collectible special frame and foil cards (see "Wizards of the Coast Unveils 'Throne of Eldraine' Product Line"). Collector Boosters are intended to be high demand products, and their inclusion in the Bundle is designed to drive sales over the Holiday season.