Hmmm... I guess the Exposition family tree is less reputable then I thought. Which is to say I didn't see any of this coming.
I don't think I'd ever dropped a single hint that there was a relation, let alone a family before this. And I'd be lying, of course, if I claimed that the Exposition Clan was planned for - I thought of it when I saw the Spaceman, and then scurried out for two more of them. Whiphand, unfortunately, is total retcon to explain the epaulets.
Wait... you've got epaulets, Redstorm... what haven't you been told?
Haha. There isn't really anything to tell, despite the epaulettes. I've thought about Redstorm having a wife, but yeah. It may happen eventually or it might not. I can't really say if there will be any ancestors or descendants at this point. Although ancestors have been hinted at already. For now, you could consider all the alternate/parallel universe Redstorms, his "family." I guess that's kind of scary too. :P