Sometimes its a smart move to let a show go dormant for a bit, then start canvasing social media and waking up all the sleeper agents after years.
I suspect The Expanse is going to go dormant from a show perspective for a while, but the series will continue to exist in the form of additional books, video games, etc until the time is right for 2-3 movies or a miniseries to wrap up the last trilogy.
If managed intelligently (and honestly it has been fairly well managed so far) I can see The Expanse being a small but rather lucrative franchise to slow burn over years. So long as the Authors ensure there is a sort of "bible" that all media has to refer back to to maintain consistency, we should also avoid the absolute ****show that is r/Witcher right now.