I don't have a real emotional attachment to Janeway alive or dead; what I want are Voyager books that are as well-written
Have you ever read "The Captain's Table: Fire Ship" by Diane Carey? It's a Solo Janeway story, essentially a long adventure that happened - I guess - between the canonical episodes where she changed hairstyle from that "bun of steel" to the shorter, softer style.
But it remains my favourite VOY in-series book. Great new alien tech and cool to see Janeway working her way up the pecking order from lowly tile-scrubber in the bowels of a spaceship to demonstrating her leadership skills.
You know, I haven't read that. I may give it a try if I can locate a copy; I generally don't like Diane Carey's 24th-century Trek output, but her TOS books were big favorites back in the day. Thanks for the recommendation!
Most fans would gladly read about her return and many would celebrate.
Okay, but "many" would not. Why is your "many" better than the other "many"?
If some readers prefer a different pattern to their novels, there are plenty out there to read.
And if some readers prefer Voyager novels where Janeway is still alive, there are plenty out there to read as well. Aren't there?
Trek novels have traditionally had an expected structure that has served it well, similar to the expected structure of a mystery or romance. And before you turn your nose up at such a comparison, remember that those types of novels sell better than any other in the market today.
Okay, but...
Why try to make Trek into something it isn't?
...What, like a romance novel?

I'm not against change, but I don't believe in arbitrary change
But there's nothing to indicate that the death of Janeway was arbitrary, and lots of comments from Margaret Clark explaining exactly why it wasn't arbitrary.
Look at "New Coke," if you have doubts. The old Coke fans didn't buy new Coke and a lot never returned to the fold when the "original recipe" returned.
And in the case of the Voyager books, there were some--myself included--who didn't like them before the new direction, would never have considered buying a Voyager novel before the new direction, and are new to the fold now that there is a new direction. Why are those people's tastes or preferences less valid than yours?
Let's not try to make Trek novels into something they aren't.![]()
Which no one is, last I looked.
I'm sorry if I sound confrontational here--as I said in an earlier post, I don't have an attachment to Voyager-with-Janeway so much as I want good stories, well-written and with interesting characters and situations. I like evolution in storytelling, as long as it results in a good story, and I don't feel that Janeway needs to be resurrected in order to accomplish that. If, however, Kirsten Beyer or someone else comes up with a great Voyager storyline that does bring back the Admiral, then more power to them (hell, the same goes for Data, come to that). But necessary? I don't see it.