Well, it's about time, Motorola. After months of waiting, the OEM has sent out invites to a September 4th event in Chicago, and it's pretty clear from the graphic that we're going to see a new Moto X, Moto G, the Moto 360, and a headset of some sort.
The invite has an animated paper fortune teller with tiny drawings of a headset (earbuds maybe), a watch, as well as phones with the letters X and G.

Motorola Sends Out Invites To September 4th Event Featuring Moto X And G Successors, The Moto 360, And A Headset was written by the awesome team at Android Police.