The Tomo version always removes all the notes placed by the editor at the end of the chapter, because they are not written by the author.
Cronos of Episode.G is not the same that Chronos of Next Dimension, even in Requiem it is said that the Titans are dead and will never return, because they ended up trapped in the depths of the Tartarus.
If Kurumada introduces Chronos as the Titan in future chapters, it would only confirm that Episode.G is not canon to the main universe, and Kurumada has his own version of these gods. But, for the moment, Cronos and Chronos are different gods and Episode.G is still part of this universe.