Based on the tweet, we now expect the Nokia phablet, known as the Nokia Lumia 1520, to be unveiled at the October 22nd event. On Monday, we heard that due to Microsoft's purchase of Nokia, the Nokia Lumia 1520 release for AT&T has been pushed back to November. That would fit in perfectly with an October introduction.
The unit is also believed to be the first Windows Phone device to come with the new GDR3 update pre-installed. Not only will this bring a number of new features to the device, but will also allow the phone to offer a larger screen size and resolution of 1080 x 1920 (FHD). The update also supports the use of a quad-core Qualcomm Snapdragon CPU under the hood.
Meanwhile, the Nokia Windows RT tablet, codenamed "Sirius," is expected to be unveiled on September 26th in New York. It is believed to be a 10.1 inch slate powered by a quad-core Qualcomm Snapdragon 800 processor, offer 2GB of RAM, and feature 32GB of native storage. There is a chance that we will see the slate also launched in November right beside the Nokia Lumia 1520 phablet.
source: @nokia via SlashGear