D&D4: Bringing out my dead (characters)

So I was playing around with D&D Insider the other night and I wanted to work up an Assassin and I came accross the Revenant. Nothing new there really, Iknew about it, but never considered it.

But then it dawned on me. I reworked an older 1st Edition Assassin character as new Revenant Assassin. A little fluff, a few hundred years and bingo. I have a character that I thought was dead and is now back for more.

Granted this might not work for every character, but it certainly has been an interesting solution. Except I have to figure out exactly how he died.

But it does bring up an interesting issue. Converting between 1st and 2nd Ed AD&D was easy. Converting over to 3rd Ed was fine, with some minor issues (feats, multiclass). But 4th Ed is an entirely different beast. Conceptually, I can convert things; but indivduals, are more difficult.
And I *still* have not completely figured out how to do witches they way I like and how I did them in previous editions, though Warlocks are really close.

All in all, still enjoying this new edition, I hope I get a chance to play my new, back from the dead, assassin.