Huawei just announced the Ascend D2. It's the latest phone from an Android OEM with a 5" 1920x1080 display. It has a pixel density of 443PPI which is higher than most of last year's 4.x" 1280x720 displays which weighed in at around 3xxPPI. Huawei calls it a "super Retina display".
It also comes with a 13MP camera, 2GB RAM, Android 4.1, 32GB storage (yeah!), no MicroSD (boo!), a 3000mAh battery (why does the HTC Droid DNA only come with a 2100mAh?), dual-band 802.11 ABGN (finally) and is available in blue and white (sound familiar?)
It's also listed as being water resistant but I'm not sure how water resistant it will be. Will I be able to use it while I shower?
I'm not sure how the banding is going to work but according to this page it only supports HSPA. My guess is that the North American version will be HSPA only too but with more band support.
The dimensions are listed as 140 mm x 71 mm x 9.4 mm. 9.4mm is a bit thicker than the Xperia Z's 7.9mm but from my experience, anything under 10mm is thin enough. If the extra 1.5mm allows for the 3000mAh battery then I'm all for it.
Under the hood is a Huawei custom quad-core processor. It's listed as a "1.5 GHz quad-core Hi-Silicon K3V2 + Balong V7R1 ". I recently reviewed the Huawei D Quad XL which had the same processor core but a different GPU. If this is indeed the same processor then it should provide similar non-graphic performance as other Cortex A9 chips. That means performance will be adequate but will lag A15 (not sure if any current or 'coming soon' phones have an A15) and quad-core Qualcomm Kraits.
Looks like a nice device. The 3000mAh battery is a really nice surprise as is the water resistance. Can't wait to try this one!
AWS LTE would be my first guess. They're probably also modernized antennas with antenna integrated radios. I still wouldn't rule B12 out, especially in sectors pointing away from the license border. ...