It's not a speculation. I mentioned it in a couple of places.
Actually, after playing a while with Oculus Quest, I want to give the port a go in following weeks. This will push gameplay systems further away, but I'd like to get the game to Quest anyway. And I'd prefer to check how does it work on Quest through the development. To not get carried away with some things that could not work well on Quest (performance wise).
I expect that it will take more than a few days, especially that I created just one android app very long time ago. And I was using a library designed to handle mobiles. Currently it won't be just switching from PC to Quest but actually having both versions work all the time. Good thing is that I actually have low level stuff finalised - there shouldn't be anything more coming. Just the actual game. That's why it is safe to port it to Quest now.