Nokia will begin their assault (operation rolling thunder) next week at the CES2012, we expect to see the announcement of Lumia 710 (already going on sale on tmobile on Jan11th), the Lumia 800 (already sold by networks in europe) and then there's the more discrete Lumia 719 and 900.
i have a feeling there's still one more device we havent heard of or seen, and Nokia has done a great job concealing this device.
so next week we will see
Nokia announcing the 719 900 800 (lte)
introduction of WP7 Tango