Offset tracking is already authorised over India and Pakistan, but I've yet to pass ONE SINGLE aircraft using it (apart from me!) since it has been given the official OK, and I never cease to be amazed at the way 99% of my FOs can't wait to get back on the airway centreline the moment we pass out of Indian airspace.
Standing by for the (usual) "it won't save you in all circumstances" posts that always follow when this subject is broached.