TAPI, CASA 1000, connecting Herat Kandahar, Quetta, Gwadar and mazar sharif, kabul, Peshawar highways are essential for the land locked state. I am looking at a huge flow of investment coming after the stability of Afghanistan in conenction with energy, trade and transit infrastructure.
Red Lines: Protection of the women rights and constitution must never be compromised. giving political identification to Afghan Taliban can be the best decision in current scenario on many grounds. I believe if the economics play its trick, gradually everything will fall in its place. Taliban are also transformed and the fact they can never control the cities owing to ISAF presence in Afghanistan heavily influenced their thinking. They will also be willing to move on consciously after learning some hard lessons.
Better Control on Narco Trade: I am no fan of Taliban but after one verdict of Mullah omer, the world witnessed the narco trade (biggest source of terror financing) ceased to exist across Afghanistan.
United front Against ISIS: Another opportunity arising from a negotiated settled would be the focus on eliminating ISIS (non afghan entity- very important fact) with renewed focus.
Fears and Insecurities: In the hind sight, we can always discuss negative consequences for the Afghan polity in general. It is heartbreaking to see Afghanistan which is not even a shadow of its past. However, baby steps like the above must be taken to avoid total collapse of the society at large. Undermining the Great Game at the Cost of Afghanistan Should be Avoided: The negotiated settlement will shrink space for outsiders (Afghanistan is in the middle of great game Indo- US vs Russia, China, Iran, Pakistan and certain central Asian Republics). The US presence is no longer attached to nation building but to counter the interests of the opponent camp. This battle is not favoring Afghanistan. Realization on Part of Pakistan: I also want to mention the role of Pakistan's military establishment. I feel there seems to be a consensus on supporting Afghan led peace process while playing an assisting role if required rather than influencing the process for its own interest. Pakistan wants a strong, secure and friendly Afghanistan. The only concern remains the creeping influence of India to present a two front situation from Afghan-Pakistan border to destabilize Pakistan which needs to be looked after.