I've got a few ideas for follow up stories, including one particular hook up that would allow the characters to meet up with some characters I would otherwise not rationally be able to pull off.

Logical possible candidates for these stories would be:

Green Hornet & Kato
The Phantom
Mandrake & Lothar
The Spirit
The Shadow
Tarzan
King Kong
The Wolfman
Dracula
The Creature From The Black Lagoon
Flash Gordon

and that one character who I won't reveal who might open up an even greater list of possibilities

The problem is, making this cohesive isn't that easy. I'm trying to stay true to the characters rather then pull a Bendis and just lump what suits me into them.

It might be a while before I get to a sequel.

What about RIVERWORLD type excuse to team up all these guys

That's a whole 'nother animal.

I've posted a blog discussing this story and the possibility of sequels. Check my home page.

Thought of a story idea I might run with to follow up this story. Might begin it tonight.

Don't want to give too much away, but my working title for it is Strange Alliances II: Return To Pellucidar.