I hope, if true, they get Benicio del Toro to reprise the role. Yes, I know he's not of South Asian decent, but at least he's a little closer to the "spirit" of Montalban's Khan. He has a similar intensity of delivery that I think would really work here. He was rumored to have been on the short list for Into Darkness, but sadly couldn't due to some scheduling conflict. It would go a long way to pushing aside the less-than-adequate (read: abysmal) previous casting choice of Cumberbach in that role (despite the fact I love him as an actor), IMO.
If I'm not careful they'll cite me as proof, but we know Kurtzman is interested in Khan, after Ceti Alpha V was written and more recently, the rumours of the prequel series 1992.
IIRC, one of our alleged insiders posted that, but I don't think there was otherwise anything said on the matter.