It should win Best Picture.
Couldn't stop thinking about Wildwood last night (fingers crossed I can publish a proper written review this weekend), so I decided to look into its BP nom chances.
I noticed that all three animated movies that made it into BP (Beauty And The Beast, Up, Toy Story 3) landed in the top 10 of critics' consensus lists for their respective years. In fact, they didn't just crack the top 10, they cracked the top 5!
I also looked up the animated movies I believe would've gotten in if the field had been a hard 10 that year (Who Framed Roger Rabbit, Aladdin, The Lion King, Toy Story, Shrek, WALL-E), and they all cracked the critics' consensus top 10 in their respective years too. I do think there's a slim, but not impossible, chance Toy Story 2 could've been #10 in its year, and it also made the top 10 in the critics consensus that year.
So, if Wildwood can manage a top 5 finish on critics' "best of" lists (very hard IMO), it might actually get in. But cracking the top 10 (plausible) is a must if it stands any chance.