I agree with all of this, but there's one thing I'd just like to add: the author can technically still add some of those more poignant items, as long as they are considerate of what the other mainstream tastes would want.
So in that sense, you can just come up with a few speculations that cover a reasonably wide gamut, that are fairly realistic in scope and take other perspectives into account instead of simply relying on what the person writing the article would want solely for themselves.
There's wild, aimless speculating, and then there's speculating based on some understanding of prior knowledge, clues/evidence of hints (circumstantial or not), and just having a general understanding of timescale for software development and knowing what certain studios focus on and their product schedules, that can help keep even detailed speculation in decent enough check.