A new Warlord series is always welcome. I'm torn though...to continue the continuity from the last series or reboot it all. Either way, Grell needs to be present and Jesus Saiz needs to draw the thing!
Yeah, there's room for some Justice League Dark, Amethyst and Aquaman love for Skataris.
Might be fun to see Zealot adventure there, too.
The Johns/Reis "The Others" arc of Aquaman is a virtual template for how to do The Warlord right and make the concept commercially successful. That pulp comics feel is exactly what DC would need to bring to The Warlord to make it work in today's market.
And you would absolutely need an artist of the caliber of Ivan Reis or Mike Grell in his prime in order to pull it off. Someone who could draw physically gorgeous and sexy men and woman in scantily-clad outfits under the hot sun at the Earth's core.