From the photos limked so far, I can't resolve fully the condition of the fan blades of the RH engine nor whether there is indeed fire damage to the bottom of the core nacelle.
I agree with some of the other posters that the smell of kerosene is not conclusive about the presence of useable fuel.
I also note that relatively intact wings do not always catch fire when crash landing on wet soil even though they are leaking fuel.
So, the majority of the speculation is worthless until we get a couple of more facts perhaps from the investigators on scene.