I see you're point but, Bears live in the Goblin Forest just outside of Weirdwood. The whole region is pretty far from civilisation in a sense & I could see bears appearing in the south just past the valley, in the mountains north-east or north-west of the map because bears are know for hunting fish in mountain streams. The gaters & mosquitos could appear more if the south-west part continues with the swampy, wetlands themes. As you said the skeletons & wraiths are cursed undead, why cant they appear in another Tombe unassociated with the last (or connected again through the Lord of Death). Also wraiths are angry spirits so mabey a haunting or two? I feel like the black goblin (& cave goblins) will get there own raids, why invent new goblin girls when u already have 2 species to work with (for now).
The way I see it the mountains to the south are more like a barren Steppe that conclude in the Swamp area, there are no Bigger forests and the valley that leads to the temple is not dense enough and has plenty of activity... First Goblins, than Orcs and finally humans.
I think the density of Goblins and other predators in the areas you mention prevent bears from settling in or atleast keep their numbers to low to encounter them.
The Undead were risen by a god or deity at least... there are no reports of magic users and Necromancers are likely the worst kind of those... being hunted by humans and Elves alike... adding more maps with swamps don't seem to add anything to the game so I doubt Tinkerer will do so... there is a limit to maps as those will blow up the game size more... I think he'll focus on creating more unique locations in order to build on the world and include all those fantasies he has.
the Peasant can become THE King of Goblins by uniting all their tribes most likely... but honestly it's only an idea as we only found a small raiders group on the mountain path between Frida and the tower od dread.
If I'm being honest I genuinely dont know how hes going to make the halflings kids work if he both removes the cap & has names for every single one. It's not a generator, Rosy says the same names everytime, is he gonna write up a never ending list of pre-gen names? Also where are MC & Rosy gonna keep alm them little halflings? I mean the only solution I can think of is also good for a possible plot hook.
Idea:
After she births the 6th kid she could get word from a cousin, sister or friend about some attack on her home village. You are sent to find said village & find that orcs, goblins or bandits have razed it. You save the surviving woman (or women) & help rebuild. After that you start having any new babies sent to the village to help rebuild... mabey... I dunno lol
I kinda doubt it will be anything grant... maybe his other kids move out one after another to settle down in other locations, no idea how long a halfling remains a kid but that could be the gist of it