There's more. I caught some stuff on the second showing.
Ra even says to Batman, after the log of fire dropped on him... "you left me for dead in my house of fire, now we're even". The only thing is, he didn't leave Liam Neeson for dead, he left the Asian character for dead in a house of fire. The movie even makes sure you know that Liam Neeson will know he wasn't left for dead when Bruce Wayne takes him to the humble peon and the peon replies "I will tell him you saved his life".
Also notice that the director seemed to draw another parallel between them (Asian Ra and Bruce Wayne) by having both of them have fall on them a burning log, and pinned them under it.
Furthermore, It seems the director left us a clue to perhaps understand that Ra really was the Asian character when he died in his temple, and then his soul transferred to Liam Neeson, who then becomes Ra. Why would I say this? Consider this... they never show why Liam Neeson was all a sudden passed out on the floor at the Temple. Why is he unconscious after Bruce fights the Asian Ra? Notice this is after Ra died under the log of fire. Could it be that Ra had taken over Liam Neeson's body?
You may think that Liam Neeson just had an accident in the fire right? Well, it seems the director thought of that too and left you another clue throughout the movie to explain that away. Notice multiple times in the movie Liam Neeson makes a point about be completely aware of his surroundings. When the ninjas are hiding in the rafters, in the fight on the ice, when he has the log fall on Wayne, in the train, etc. Could it be that they wanted you to know that Liam Neeson wouldn't just fall accident to his surroundings in the fire just by watching a fight?