That new spy line is perfect, JJB! It’s actually really funny, and helps the following line about his “first laser battle” too.

Here is everything that remains incomplete or undecided about V5:

We need a line for Luke to serve as something like, “Leia sensed it during your training” to impy Leia learned about Rey’s lineage somehow between films.
Undetermined about a potential line for Kylo to suggest that the dagger “revealed” to Rey her parents’ fate at the hands of Ochi, to support our change for the dagger to be a mystical revelatory device rather than Rey sensing “horrible things” it has done.

That’s it, as far as I have kept track! It’s a very short list. I’m not in a rush, but whenever V5 can be complete, and it’ll take a while most likely for me to recompile everything, then it can happily sit there and wait for the ‘Rey Nobody’ components.