12MP Camera and Other Leaks of Samsung Galaxy S8

1. The Galaxy S8 might feature a dual rear camera, with a 12-megapixel sensor with an f/1.7 aperture and a new visual search tool and a 13-megapixel sensor and their front camera will have an 8MP sensor with an f/1.7 aperture but a different leak said the Galaxy S8 will have a 30-megapixel rear camera with optical image stabilization and it will also have a 9-megapixel front-facing camera.
2. Samsung will release a 6.2-inch curved display model alongside a 5.7-inch (4096 x 2160 pixel resolution) display model with both featuring a 2K display.
3. The processor will be Exynos 8895 and Snapdragon 835, as well as 6GB and 8GB of RAM. 
4. It will have a 4,200mAh battery.
5. It will have a fingerprint scanner believed to be on the back of the device and retina scanners, and a built-in mini projector.
6. Samsung will only offer curved versions of the Galaxy S this time around.
7. It will have a side-mounted button, getting rid of the home button in favor of an "all-screen front"with a wraparound display and a virtual home button available in the lower half of the glass. 
8. Samsung is set to launch a Bixby voice assistant, powered by Viv (which Samsung has confirmed), as well as an always-visible status bar. There's believed to be a dedicated hardware button to launch Bixby, the personal assistant developed by Siri founder Dag Kittlaus ever since Samsung acquired Viv in October 2016.
9. A Guardian report also mentioned a bezel-less infinity display. 
10. Samsung will include a USB Type-C port for charging and audio removing the 3.5mm headphone jack but will have dual speakers. Samsung acquired Harman in late 2016, so it's thought the speakers will be Harman-branded.
11. Samsung Galaxy S8 will come with 8GB of RAM, while another leak mentioned of  a 6GB of RAM backed by a 3.2GHz octa-core Qualcomm Snapdragon 830 chip while other leaks said the Galaxy S8 will have 4GB of RAM with internal storage options starting from 64GB.
12. Samsung's next flagship will run the latest version of Android overlaid with its TouchWiz software. 

Sources:

http://www.zdnet.com/article/samsung-galaxy-s8-what-we-know-so-far/

http://www.techradar.com/news/phone-and-communications/mobile-phones/samsung-galaxy-s8-1318744