Hanley would be a chemistry issue, plus we already have a shortstop we spent some money on. Cabrera is "working out" here in terms of the FO I'd think. They won't touch that. Hanley goes to a team who can afford his monster salary, it'll never be Cincinnati. It's probably a good thing as we're short on primadonnas and don't promote the type of baseball he plays.
Greinke won't go anywhere, not this year. Maybe next if things continue. But he's signed long-term and there's no reason for them to trade a guy who is part of the solution. They know they need to build around Greinke in KC.
Markakis makes the least sense of all, IMO. No reason to think he'd be made available. Even if he were, we've already got too many left handed sticks. Where do you play him? Left field? Markakis platoon with Gomes? Who plays center? Too many lefties to consider adding a lefty. Baltimore has been bad for a while. Markakis isn't having a tremendous season and they wouldn't get value out of him that he probably has in a few years if they cannot improve. I think they're still trying to build around him.
I think the more likely scenario is getting a guy like an Austin Kearns to be honest. Don't be surprised if this is the guy you hear about coming back to Cincinnati if he's still hitting over .290-.300 in June. The Indians have him on the cheap. He's playing for a contract. Right handed stick who drives in some runs and plays left field. I am telling you I think Kearns is a guy they'll call about--and I'm not high on Kearns. But for a half season, might be a guy who gets a spark, and he's more around the price range the Reds will be looking at while being a RH hitter who can counterbalance when a LHP is opposing our lineup.