Samsung Announces Four New Galaxy Smartphones, Galaxy Core II, Galaxy Ace 4, Galaxy Young 2, and Galaxy Star 2
Starting at the top, Samsung announced the Galaxy Core II, a dual-SIM phone with a 4.5-inch display (800x480). It also has a 1.2GHz quad-core processor, 768MB of RAM, 4GB internal memory (expandable via microSD card slot), VGA front-facing camera, 5MP rear-facing camera with auto-focus and flash, 802.11n Wi-Fi + Blueooth 4.0, USB 2.0 connectivity, and a 2,000 mAh battery.
Second up is the Galaxy Ace 4 powered by a 1GHz dual-core processor. The LTE version features a 4-inch (800x480) display, 1GB of RAM, 4GB of internal storage (expandable via microSD card slot), VGA front-facing camera, 5MP rear-facing camera with flash, 802.11n Wi-Fi + Bluetooth 4.0, and an 1,800mAh battery. There's also a 3G version of the Galaxy Ace 4 that's similarly spec'd, but with 512MB of RAM and a 1,500 mAh battery. It also only records in 720p@30fps, while the LTE model can record at 1080p@30fps.
Moving along, the Galaxy Young 2 brings to the table a 3.5-inch display with a 480x320 resolution, 1GHz single-core processor, 512MB of RAM, 4GB internal storage (upgradeable via microSD card slot), 3MP front-facing camera, 802.11 Wi-Fi + Bluetooth 4.0, and a 1,300mAh battery.

Finally, the Galaxy Star 2 trails the pack and is almost identically spec'd as the Galaxy Young 2 except that it has a 2MP front-facing camera.
No word yet on when these devices will be available or for how much.