Last year, Huawei has said that it would bring Android 4.4 update for Huaweo Ascend P6, and they really work for this busy.
There are many users expressed on their Ascend P6 since those phone has received Android 4.4 update, but given figure from their point of view, the system is based on Android 4.4.2 EMUI2.0.
From Huawei forums look, this update seems to be confined only to some users, but there are sources claimed that the Ascend P6 Unicom user will be come this month, mobile users will receive the latest system update.
In addition, sources also revealed, P6S, Mate 2 will be update to Android 4.4.2 update this month. [source]