Because of his position versatility, including OF, I don’t think a strict platoon with Kipnis would be best. Ideally, the Indians would like to see Kipnis improve against lefties, ala Curtis Granderson. If Kipnis is the weakest hitter against lefties on a given day, go for it.
Chisenhall is slated to be the Tribe’s starting 3B this year, which is why Aviles isn’t likely to see a ton of playing time there. He got hurt shortly after his callup last year, but unless he gets injured again there’s no reason to think he wont be the everyday guy. The only chance Aviles has of being a starter is if Cabrera is dealt.
That being said, I actually think Aviles will get a good deal of playing time even if Cabrera isn’t traded. As Jeff mentioned, Kipnis has struggled mightily against lefties so far in his career, and Chisenhall is no different. He struggled against them in the minors and so far has a .301 wOBA against them at this level. He’ll see plenty of playing time at 2B and 3B this year. In addition to that, the Indians have made it known that they want to give Cabrera regular days off due to his recent second half slumps, and Aviles is the only other SS on the roster. We’ll have to see how the LF situation shakes out over the winter, but it’s not hard to imagine him seeing time there as well.