The Ultimate Edition 2 will be available in Spring 2021 in Wizards Play Network stores around the world. The Secret Lair will feature ten full-art Pathway lands, the six from Zendikar Rising and the upcoming four from Kaldheim.
Wizards have chosen to switch up the art, so the new art on the already existing six Pathways will be set on Kaldheim, while the four upcoming Kaldheim Pathways will feature Zendikar-art in the drop.
There will be significantly more copies of the second Ultimate Edition than the first, making the expected retail price lower than the last.