I finished the Meadow Wolf Goals and once I placed the Meadow Wolf, I got a pop up and the goal started again back at goal 1 so it looks like we'll be able to complete the Meadow Wolf goals as many times as we like throughout the event.
It doesn't make much sense to me because (unless I'm confused) the only reason to keep doing the goals is because you get the wolf immediately instead of having to craft it... right?