Dec 29, 2025; Winnipeg, Manitoba, CAN; Edmonton Oilers center Connor McDavid (97) warms up before a game against the Winnipeg Jets at Canada Life Centre. | James Carey Lauder-Imagn Images Here is what collectors need to know about the forthcoming Extended Series release. Upper Deck Extended Series Rounds Out The Year's Base Set In The Hobby The total number of cards in Extended series comes in at 250 cards. 200 of them are of veterans, and 50 are of Young Guns or 1st Round Rookies. This year has a new and interesting feature. Some of the cards featuring veterans will have photographs from the 4 Nations Faceoff, which is held during the All Star break. These cards will feature players representing their home country, which will appeal to many collectors. 2025-26 Upper Deck Extended Series Sebastian Aho Base Card | DACardWorld Collectors Will Be Searching For Young Guns Rookie Cards And New Inserts The Young Guns Rookie Cards will be some of the most sought after cards in the set.…