One of the reasons I push the idea of Coruscant so crazily(I admit it!) is it has a nice symmetry not just with the OT but the whole saga.

Here is the place where Palpatine hatched his whole scheme to takeover the republic and here is where the son of the man Palpatine corrupted will return and face off with him.

It has a beauty and cyclical nature to it that Lucas has used throughout the saga.

And I didn't think of it, Lucas himself originally thought of the idea. And his original inclination was correct.

Bring things full circle with the climax of the whole story of the Skywalkers by having father and son together with Palpatine on Coruscant.