LW is a self-directed game in a lot of ways. What calls to you? Achievements? Dressing your wolves? Expanding your dens and breeding wolves? Collecting companions? There are the rotating events each week with activities to complete, plus the seasonal events every few months. Arena is a great little game, although I prefer the seasonal version for speed.
If you're asking what to do in campaign specifically now, you can just explore any areas you want again. You can use it to level up your wolves/companions, grind out for specific items/trinkets/materials based on the area you explore, hunt for wild wolves/knucklebones... the world is your oyster 💖