...This is a fascinating comment in terms of how differently people can think. The obvious thing to me was to go ahead and write them, and I therefore imagined that you had deliberately rejected that option and were resisting the urge!
I have written a scene ahead maybe once in my life. Basically, if I haven't gotten there yet, I don't know what the tensions are that will make the scene work, so I can't really write it.
It just doesn't feel right, so I hold the scene in my head.
I have written snippets of dialogue ahead of time. And long notes when I don't already have any, but not scenes.
In this case, I could write the scene because I do know a lot of the surrounding info...but I probably won't...;-)