The Animal Man writer has teased a series of characters on Twitter.
He posted images of Kamandi, The Spectre, Red Tornado and Jemm, Son of Saturn without explanation. He has so far failed to respond to fan queries about the pictures.
Kamandi, the Last Boy on Earth was one of Jack Kirby's creations for DC. The android Red Tornado is a sometime Justice League and Justice Society member who has been briefly glimpsed in Earth 2.
The Spectre, the spirit of God's vengeance was most recently seen in the new Phantom Stranger series. Jemm is the most obscure of the characters, an alien who has served as both hero and antagonist.
Lemire is currently writing Animal Man, Green Arrow and Justice League Dark for DC.
His Vertigo series Sweet Tooth will conclude next week with issue #40.