Sony hasn't always been the best at updating its phones, but the company does have a commitment to AOSP unlike most others. It contributes a lot of code to Android, and developers are encouraged to tinker with unlocked devices. In fact, Sony has just announced support for AOSP on the Xperia E3 and Xperia T3, meaning all Qualcomm-based phones from 2014 can run pure Android with very little hassle.
The mid-range market continues to expand into larger and larger handsets, and Sony doesn't want to be left behind. To that end, they've announced the Xperia T3, a 5.3-inch Android phone with an awesome industrial design, but internals that will leave hardware buffs wanting more. The star of the show is an all-steel body that's admirably thin at just 7mm. It will be available globally in late July.
Move past the admittedly pretty body (available in white, black, or purple), and you'll see hardware that's shooting for the bottom of the mid-range.