How canonical is this cover art from the Eureka Seven DVD set? (Let's forget AO for a moment, I brushed off AO as an "alternate future" since the original kids were non-existent) :
Eureka Seven Hi-Evolution 1 - Movie - Blu-ray + DVD
DVD Review: Eureka Seven AO – Part 2 | AnimeBlurayUK
Eureka Seven AO - The Complete Series - Part One - Blu-ray + DVD
Eureka Seven Part 1 Blu-ray
Eureka Seven - Vol. 9 (DVD, 2007) for sale online | eBay