Bloom County
On October 25, 2017 IDW published "Bloom County: Real, Classy, & Compleat: 1980-1989", collecting the complete run of "Bloom County" in two volumes. An "Ultimate Collectors Set" was also released, including the original art from a daily strip featuring Opus, a page from Breathed's sketchbooks, and a personalized sketch of Opus on the slipcover.Published by The Library of American Comics, an imprint of IDW Publishing.
Calvin and Hobbes
In 2016 and 2017, author Berkeley Breathed included "Calvin and Hobbes" in various "Bloom County" cartoons. He launched the first cartoon on April Fool's Day 2016 and jokingly issued a statement suggesting that he had acquired "Calvin and Hobbes" from Bill Watterson, who was "out of the Arizona facility, continent and looking forward to some well-earned financial security." While bearing Watterson's signature and drawing style, as well as featuring characters from both "Calvin and Hobbes" and Breathed's "Bloom County", it is unclear whether Watterson had any input into these cartoons or not.