The only suggestions I could offer would have to do with the things I either didn't like, or thought were falling short of what POE 1 did. So... all of it just personal feelings, with some musings that maybe others felt the same upon hearing of such things.
- As some suggested, the pirate theme may have been seen as an odd next step after the last game. The plot itself just felt pointless by the end of it too, which is something others had talked about. Maybe that was deliberate, but such a move is basically too artsy for its own good if it was.
- Performance issues cropped up that remained unresolved for a while.
- Smaller party size certainly stumped me at first. I went ahead and bought the game anyhow, because I love Obsidian, but that was not a favorable thing on the bullet point list for me prior to release.
- Besides the plot, overall Deadfire came across as more of a mechanical evolution than a logical next step in scale or adventure. To cite the evolution of Icewind Dale to Icewind 2; you went from squad encounters to all out warfare. The encounters were bigger in the sequel, the scale of the journey covered more ground, the specific things you were expected to do were larger... the same can be said for BG 1 to 2. With POE 2, the evolution of scale sort of felt like it went sideways rather than up. We covered more geography, but the scale overall didn't feel much bigger than POE 1. Again, for me this didn't matter anyhow, because when I hear "Obsidian" and "fantasy RPG", I'm in... but most aren't like that I reckon.
I still hope that we'll see a POE 3 someday, because at the end of the day, I enjoyed it. It was just in a bit of a strange place over all.