The Xperia M5 and C5 Ultra have been announced:
http://www.gsmarena.com/sony_announces_the_xperia_c5_ultra_and_the_xperia_m5-news-13359.php
M5:
"The M5 also has a 5-inch 1920x1080 resolution IPS panel, MediaTek Helio X10 processor, 3GB RAM, 16GB internal memory with microSD card slot, 21.5 megapixel camera on the back, 13 megapixel camera on the front, LTE, 2600mAh battery with two-day battery life, and Android 5.0 Lollipop."
C5 Ultra:
"The C5 Ultra has a 6-inch, 1920x1080 resolution IPS display with really thin bezels on the side, 1.7GHz octa-core MediaTek MT6752 chipset, 2GB of RAM, 16GB internal memory, microSD card slot, LTE, 2930mAh battery with a promised battery life of up to two days, and Android 5.0 Lollipop."
I do like that they're upping the specs for these mid range phones, which can only mean the flagships that'll hopefully be announced next month will take things even further.
I must admit I like that green colour of the C5 Ultra... hope the flagships come in those options.