MH2 Typical route KUL-LHR
 

I am booked to travel MH2 ex KUL this month and am curious as to what the routing will be through to LHR??

Try doing a search on "great circle mapper" and you will find a website that will display the great-circle (shortest) route. The actual route flown is very close to this: basically it is over Phuket, the Andaman islands, India and Pakistan, Afghanistan and Turkmenistan, the Caspian Sea, Russia and the Ukraine, northern Europe. If there are very strong winds over Russia, sometimes it is faster to fly over Mumbai, the UAE, and Iran.