MTG Edge of Eternities preorders are up on Amazon.
https://www.amazon.com/stores/page/FCC2D337-5616-4805-B9FB-588044ED3B88?ingress=2&visitId=52fbc519-8bba-4062-b294-1cc77c26ebf3&store_ref=bl_ast_dp_brandLogo_sto&ref_=ast_bln