LG G2 is a great android device and in my opinion, it comes in top 10 smartphones of 2013. The sequel to the LG G2 i.e. the LG G3 is now on the rumour list having an 8 core processor.
We don't have much info about the handset but we do have benchmark scores of it. The LG's own 8 core processor codenamed as Odin is rumoured to be featured in LG G3 and a device with the same processor has been through the benchmark tests.
We cannot say Odin to be a true octa-core processor because it scores a total of 27184 which is less than the Exynos processor or the MediaTek 8 core processor which uses 8 cores simultaneously. By looking at the benchmarks, we can say that the 8 cores in Odin don't work simultaneously but rather 4 at one time. 4 cores are for heavy work and 4 for light. The processor shown on the benchmarks is clocked at 100-1GHz.
According to AnTuTu, the device of which these benchmarks are, has a Full HD display, 2 GB RAM, 4 GB of native storage and is running on Android 4.2.2. One thing here is worth noticing that, this device features a GPU which belong to PowerVR Series 6, the same series which comes worth Apple iPhone 5S.
Don't get happy because this is just a prototype and the real one is expected to be much better.