If Pocket were to decide to resurrect Janeway, I profoundly doubt it'd be because a smattering of single-character fans chose not to buy the books. Pocket's Star Trek line is a massive franchise encompassing many series and dozens of regular characters. The number of book buyers for whom Kathryn Janeway is the one and only reason for reading Trek novels is bound to be a minuscule percentage of the whole.
Frankly, I bet if Janeway were resurrected, the number of readers who'd stop buying the novels because they were disgusted by another use of the Magic Reset Button to render death trivial would probably cancel out the number of readers who were formerly boycotting them due to Janeway being still dead.
What makes you think that people who want her back are "single-character fans"? I didn't buy dozens of TNG, DS9, and TOS novels over the years just to read about Janeway. I didn't buy all of the SNW collections or TNG episode guides or the Atlas of the Federation, etc., because I wanted to read about Janeway. I have spent thousands of dollars buying PB books over the years--and there is no way I could have spent a fraction of that on books that just featured Janeway.
I am upset because one editor (since fired) and apparently all of the writers of the Trek franchise have removed a singularly inspirational female captain from the mix for no justifiable reason. Janeway's story was not "over," as the above-mentioned editor claimed; it hadn't even been told--at least as well as it could have been by the current VOY writer. I think the ongoing outcry about this might just make them rethink how they treat characters who originate from the televised series.
I think the big problem at PB is their decision, so many years ago, to entangle the crews of the three concurrent series in a single plot. What happens in a VOY novel affects the TNG and DS9 novels, and vice versa. Their editorial decision has, in effect, painted them into a corner and severely limited the options that writers have open to them. Therefore, bringing Janeway back resonates through all the Destiny novels and other post-"Before Dishonor" novels. That is what a bad decision looks like.
As for Star Trek readers becoming upset about another use the reset button, I must respectfully disagree. The reset button is a long tradition in Trek, dating back to the 60's and was used in every series, as needed. I can't believe that readers would be that picky if her return were done well. Some people say that "Year of Hell," is the best episode of Voyager, and yet it never happened, thanks to the reset button. In fact, a creative writer who is willing to think outside the box (like Beyer, I believe) can bring Janeway back without using a reset button because, don't forget, she is with the Q.
For the record, I've stopped buying all the PB books I used to enjoy because I am upset with Janeway's treatment (and I'm not too happy with what they've done to Sisko, either). It is a big franchise, and it's should be big enough to make more than the same old rank and file reader happy.