I think if D/LF didn’t see market potential for a continuation, they absolutely would not be doing it. And even if all three movies were loved by critics, but had flopped in the box office, they would not be doing it (maybe they’d commission a few books or comics instead). That is the way of corporate strategy. So this is a good sign. They see that this trilogy has fans who will show up, even if many of those fans were burned by TROS.
With all that said, I am concerned, as I am one of those people who hated that Ben died at the end. It’s a tragedy without catharsis. There were many death-fakeouts in the film, but this one I surely wouldn’t mind being somehow undone lol (beyond this forum and reddit, you’ll find many people who agree, actually) You set up this whole dyad thing, two that are one, “come home, Ben”, and then just kill him. So I’m concerned that they will just ignore him in this new story. If it’s an excellent story otherwise, perhaps that can be acceptable (a la TLJ after the reset that was TFA, but that’s not entirely analogous). The second thing I hated was Rey Palpatine, but they might well ignore that, for the better.
We shall see, for now I’m just glad that it looks like the story no longer ends with a big lump of nothing. The years of sequel draught will be over, finally.