Dynamite Comics is currently doing a miniseries entitled "Project Superpowers," featuring a bunch of Golden Age superheroes, most of whom are now public domain; they include Fighting Yank, Green Lama, Black Terror, the original Daredevil (renamed The Death-Defying 'Devil), The Flame, and more.  It's been hinted that after the mini is finished, these characters will be featured in regular titles.

Read the Wikipedia article for more info.