) A female minifig Valkyrie with snap-on braided hair, spear, horse, and "lady-like" armored breastplate
) "Beowulf vs Grendel" (minifig vs monster, and sure it's a little fast and loose with history, but it fits the Viking theme nicely)
) "Thor vs Surtur" (hammer-wielding minifig against a red fiery giant)
) "Yggdrasill Forest Stronghold" (combining the old Forestmen idea with the mighty tree from Norse mythology, with lots of "good" minifigs)
) "Loki's Frost Giant Fortress" (combine Loki with "evil" frost giants and their icy castle. Use same giant as Surtur, but make blue instead of red)