- You can get a traveler's set by rummaging through the trash piles in the junkyard(I do not know of another way to get it)
- For you to progress the Orc's war you need to start another event that only becomes availabe after finishing the curse of lust(good ending)and reaching the orc village
- The restrain potion can be learned through a task Bernard gives called 'more potions'
- Hayden at the moment only has one heart and you need to go on a date with him and get all the answers to his questions right
- Logan second heart can be achieved after finishing Bareshade's expansion, Country Road and have helped him with his job at the sawmill Korg only has 1 heart at the moment
- I think the plan is to have hearts and romances for all the characters you can get likes with eventually(don't quote me on that) and what gives likes with characters... depends on their personalities mostly, like Logan doesn't like soft/pick me(I don't know how to describe this) people so whenever you're proactive and treat him normaly he likes you granted he's explosive so it's better to stay away from topics he's not ready to talk or doesn't want to talk about another example is Everett the man is extremely repressed and kind uncomfortable with himself so whenever you're supportive of him and relaxed he likes you more
I think that's everything you asked