In reply to AJ.

Based on my discussion with them, that's not something that is remotely on the radar. They are "all in" with WordPress.

With that said, you never know what direction development will take things. A dev team could look at something and say, "Hey, we could really build features X, Y, and Z independently of WordPress." Then, you start exploring options. Even Gutenberg is its own separate thing that can be run on top of other platforms. It's not out of the realm of possibility that a page builder could go that direction in the future.