When WotC first announced Time Spiral: Remastered back in the Fall (see "Wizards of the Coast Drops 'Magic: The Gathering's' Release Schedule For 2021"), very few details were offered as to what exactly this set would entail. Recently, in a WPN article, WotC offered a little bit more information as to the premise of the set:
"Time Spiral Remastered is a new way to experience the Time Spiral block—Time Spiral, Planar Chaos, and Future Sight. It will feature fan favorites from all three sets, distilled into one draft experience."
The original Time Spiral sets featured time-shifted reprints of popular cards from various expansions in Magic history, and was a big hit with fan base (see "Wizards Springs Surprise With 'Time Spiral'"). This block featured iconic cards like Damnation, Magus of the Moon, and the dreaded Tarmogoyf.
WotC is also offering a minimum allocation to retailers that make WPN Premium by January 15. This set will have a distributor level allocation, but WPN Premium stores will be able to access this special minimum allocation set by WotC themselves.