According to an article in the Sudan Tribune, Japan and specifically the Toyota Corporation will work with South Sudan to construct and oil pipeline through Kenya. If the project comes to fruition, it would radically alter the dynamic in play now. Sudan faces sanctions and numerous other limits to its income. Transit fees collected from South Sudan for oil shipped through its pipeline to Port Sudan constitute a major source of income that among other things allows the government to pay its security forces and purchase weaponry.
The simple fact is that the more that oil flows through Port Sudan, the more blood will flow in South Kordofan, Blue Nile, and Darfur.
Fighting, as Sudan does, is expensive and the oil revenue is essential to maintaining the fight. Of course, building the new pipeline will take years, not weeks or months, and the suffering in the Nuba Mountains, Blue Nile, and Darfur will continue.
Meanwhile, the more that Sudan works with Iran with Iran providing the Khartoum Regime both income and weaponry, the more that other nations will be willing to work with the rebel groups and to support South Sudan in its disputes with the north. With every attempt to subdue the Sudanese Revolutionary Forces that fails and results in both the death of soldiers fighting only for a paycheck and in the capture of additional military assets to be used by the SRF against the state, the situation worsens for Sudan. With every child who dies of starvation in the Nuba Mountains and Blue Nile, the more well motivated and committed rebel troops there will be fighting against the Khartoum Regime. The strategic situation for Sudan is not a good one now and if the oil pipeline is actually developed through Kenya, it may prove to be the coup de grace against the Khartoum Regime.
All of this is yet far off, however. There is much work to do now to save innocents lives threatened by the hands of the genocidaires in Sudan.