I want WOTC to make the other 5 possible triomes so bad, with other Apexes, Mythos and the return of the other five Ultimatums. Following the pattern of the current big 5 we would have a Cat Dinosaur Beast "Naya" Apex, Dinosaur Nightmare Elemental "Grixis" Apex, Nightmare Dinosaur Beast "Jund" Apex, Cat Elemental Beast "Bant" Apex and a Cat Elemental Nightmare "Espert" Apex. Ikoria my new favorite plane! But I wish the new triomes would have each another dominant clade, but the other two colors would come from the original triomes as they would be minor regions in the plane to not mess up with the lore of the original big 5. My thoughts are: Wolf for "Jund" (Green is the Wolf, [based on the Wolfbear card] making a Nightmare Wolf Dinosaur); Bear for "Naya" (White is the Bear [based on the Solid Footing card], making a Beast Bear Dinosaur); Dragon for "Grixis" (Red is Dragon [iconic color for dragons], making a Dragon Elemental Nightmare); Birds for "Bant" (Blue is Bird, making a Bird Beast Cat [based on the Jubilant Skybonder card]) and; Spirits for "Esper" (Black is Spirit [spirits and nightmares, wispy creatures unite xD], making a Elemental Spirit Cat).
I would like to one day see a series on who is lore wise the most powerful legendary in Magic. Like most powerful humans, dragons, planeswalkers, artifacts, etc.