The standard question to seismologists is: "Are there a lot more earthquakes now, than before?" The standard answer is: "No, you're dreaming." But this time, I am beginning to think there are a lot more earthquakes in a certain part of the world.
The 2004 giant slip produced a big dimple in the earth. This stress change has to work itself out. Since the crust is non-linear with big faults, there is a 'diffusion' of strain changes. This diffusion can go out much farther than one would think.
The big 'hit' would be thrust earthquakes in a north-south direction, north of the big earthquake. I've outlined this in red.