I finally got around to reading the Batwoman story from the newest Batman Giant. It's fine. Fun fight scene; Kate's just the right mix of fighty and smart but not too quippy (but she's also weirdly speechy at the end).
I don't know if it's supposed to be in Prime Earth continuity. If it is, then it either completely retcons some of Talon and a fair bit of Batman, inc., or else Lord Death Man was imprisoned in space again, unseen.