LG India has answered a question on Twitter about the company's plans for a KitKat update for the Optimus G Pro. Even though there is no official press statement so far, according to the message sent the update is indeed in the works.
It seems LG is prepping to release Android 4.4 KitKat, probably sweetened by the latest Optimus UI, in Q2 this year. This means, if everything goes right, the update should be hitting the Optimus G Pro phablets by the end of June.
LG, will reportedly skip Android 4.3 in favor of 4.4 KitKat for quite a few devices - LG Optimus F3, LG Optimus F6, LG G Pad 8.3, LG G Pro Lite, LG Optimus F7, LG Optimus L9 II, LG Optimus Vu II. Meanwhile LG has already confirmed the G2 will be getting the official KitKat ROM in March.
Thank you, Prabhjit Singh Walia, for a great tip!