It's worth noting that the known world has just gone through a massive paradigm shift in natural science. Dynamis was an esoteric field of study that most people didn't know about, and the few that did considered it to be a mere curiosity. Now we've seen that it can be world-changing, and there'll be a surge of interest. It's a bit like the jump from Classical Mechanics to Quantum Mechanics. A lot of the things that were previously attributed to aether will likely have to be reviewed and re-evaluated using the framework of this new concept. We have no consistent 'Word of God' explanation, only theories from characters. And it's better that way, because it lets us piece together the puzzle as the story unfolds.

I personally hope that Dynamis continues to be expanded over the next storyline, especially in the context of the Void and Void magic. It's especially interesting in the context of the Garleans, because a lack of proficiency for aether manipulation might translate into a proficiency with dynamis.