What do you mean by ‘compatible with “Kiya”, but also with an early version of “Nefertiti”’?The team of the Amarna Project is not sure to attribute the North Palace to Kiya.
[North Palace - Amarna The Place - Amarna Project]
Going down you will see the reconstruction made by Reeves where he sustains that Meritaten has substituted Kiya.
Now, that's the reconstruction where I suspect Reeves has fallen again in his curious attitute to exaggerate about interpolation. And he sees "Akhenaten" in the bigger partial cartouche.
Well, the bigger cartouche is also compatible with a version of one cartouche of the Aten and the traces of the signs of the original name of the queen can be compatible with "Kiya", but also with an early version of "Nefertiti". The traces are little, partial and too faded to allow to be really certain.