Considering how much the Spiral seems to be based around the Norse Mythology of the 9 Realms and Yggdrasil, I am wondering since Wintertusk contained Ymir in Jotungard (Jotunheim, home of the Frost Giants), perhaps the next Side areas will contain Asgard (Home of the Gods), Midgard (Home of the Humans), and Elfenheim (Home of the Elves).
With the Realm of Asgard, perhaps we could see the following God(s) given spells @ a cost of 9 pips:
Fire - DAGR - God of the Day Ice - HEIMDALL - Guardian of the Bifrost Storm - THOR - God of Thunder Balance - ODIN - Chief of the Gods Life - FRIGGA - Wife of Odin Death - LOKI - Son of Frost Giants, a Trickste Myth - FJORGYN - Mother of Thor, name means 'Earth', so Goddess of Earth
Loki spell could be a May SAP half to health OR deal bigger of pure damage (50/50 chance either way)
ODIN could be a Spell that does like 200 of all 6 but balance damage to one target
First thing you got the names of all the areas of wintertusk wrong. Second those places you said are just areas of winterttusk not new worlds. Third KI will never add this