About the only thing that will get me to switch out my Note 2 will be a 7-8" tablet that makes phone calls.
My first BlackBerry got me to stop needing to carry a separate phone, camera, mp3 player, and pda. Before the BlackBerry, I looked like Batman with all the things hanging from my utility belt. The whole prep of getting a smartphone was to carry just one device.
Now, I carry my Note 2 and Nexus 7. As much as I like the larger screen on the Note 2, I still prefer my Nexus 7 for reading books, magazines, and blogs, along with watching videos. But that means carrying multiple devices again. If my Nexus 7 could be used as a regular cell phone, or if the US model of the Note 8 had phone capabilities, I'd get rid of the Note 2.
I already use a headset most of the time for phone calls (so I can look things up, check my calendar, or take notes), so it wouldn't be like holding a '70s boom box to my head. I just want to get back to carrying one device again.