Personally, i hope they go all out roguelike. I like a game that doesnt hold your hands, yet has a simple baseline, that still allows you to go in depth.
If you leave things like plotting a route across the land to the player, without any handholding, leaving them to read landmarks on a map, scrounging through the rainblasted fog, frantically keeping an eye out for that well known rocky peak. That would put alot of value on veteran and bright minded players.
Also im all for finite ammo and fuel, as long as the mechanics sorrounding it arent tedious, I do not want to memorize spreadsheets in my spare time. The game still needs to be fundamentally fun i think.
Im also hoping that the player is given free hands in a dangerous world, meaning you can raid and pillage anyone, provided they can do the same to you. So a merchant wont leave port without an escort, wich they will have to pay for their trouble.
And perhaps most importantly, Keep levels irrelevant to gameplay. You can have a fancy title, and that might theoretically seperate the men from the boys, but a new player has to have the potential to be exactly as dangerous and a rugged veteran.