Unfortunately Q seems to be a common button to drop item. I think in ARK, the functionality is to put the current item away which i like better as I typically don't see a need to quickly drop an item (guess it depends on what kinds of games you're used to playing). Rising World is definately not a fast-paced game which keeps you on your toes where quickly picking up and dropping items is a concern. I'd like to see the functionality of Q changed but for now, I just re-assign it to the other side of my keyboard.
The problem with the bear and other predators is that each mob and character has essentially infinite stamina. Pretty sure there's some kind of skill system being planned. I'd like to see limited stamina apply to all mobs and characters. Stamina should be leveled up. At present I'm playing a lot of 7 days to die and I think they have a pretty good grasp on the character stats and skill system. I'd like to see something similar in Rising World. E.g. being able to level up, enhance stamina or mining speed.
Regarding hostile mobs (e.g. not bears) which actively seek you. I think Red's plan is to have the above ground relatively peaceful. When dungeons and temples get added, some of those will likely be the "dangerous areas" which you speak of. Dungeons will have hostile creatures (not sure what kinds). So depending on what you want out of the game, it should be possible to live a peaceful life in your little cottage in the woods and grow a garden, or you can go exploring and dungeon raiding and face greater challenges. As a warning message like what you'd suggest, I'd like to see something like, "You have an eerie feeling about this place" or perhaps a specific sound effect or changing or the ambient light. That might be a way to detect that a dungeon is nearby. I remember in Minecraft the only way to locate dungeons and mineshafts is by looking for patterns in the lake or ocean floors. I tried it but had limited sucess.
Dungeons will definitely have treasures of some time. Not sure if anything too unique or not but I know Red also mentioned something about abandoned houses generated via seed in the future (in conjunction with the dungeon update), possibly even castles.
Primitive stone tools would be nice. I've had to resort to cheating a few times like after playing ARK a while, started a new game in Rising World and pressed that pesky Q to put my pickaxe away and being unable to find it anymore in the tall grass. Anyways, yeah... I'd like to see the ability to pick up blades of grass with your bear hands (attack with fists perhaps), pick up loose stones and punch trees (I mean, come on it's pretty much expected to have to punch a tree in any survival/crafting game) to have to do that in order to craft primitive stone tools. What would be cool actually is to be able to harvest those little bushes in the game that don't seem to have any purpose yet besides decoration. if we could harvest sticks directly from those, plant fibers from the grass and a few small stones laying around, we could start crafting primitive tools. I know a survival mode is planned but I dont know what all details will be in such.
Regarding the regenerated dungeons, I personally think that dungeons should be protected kind of like how you can have player protected areas via lua script. My issue with Minecraft dungeons and temples is that you can essentially enter it from outside anywhere and destroy it from the inside. I'd like to see a dungeon in Rising World be a place where you have only a limited way to enter and have to solve some kind of puzzle to gain the treasure, not simply mine in from the back wall, raid a treasure chest, and leave.
The goblin hoards or dragons coming sounds like something you'd encounter in games like 7 Days to Die where you get zombie hoards every 7 days. I'm not sure if Red has plans for anything like this in the various game modes yet to be implemented. I wouldn't mind it as a separate option however.