Love Rage of Ultron but I have a specifics question. In ROU the Ultron they fight is an earlier incarnation that's invaded Titan, so does that mean there's a more "recent" Ultron around in the Marvel Universe as well? I'm avoiding spoilers for the end of the book deliberately.
Not really, in that the more recent Ultron of which you speak was destroyed relatively definitively in AGE OF ULTRON.