I don't think reactions to trailers are going to make a difference in this case. Even this far away from December, it's a given that families will show up for Sonic 3 and Mufasa, probably more so for the latter because The Lion King as a brand still has a broader audience appeal but both will do well. The War of the Rohirrim sounds like it'll be aimed more towards adults than any of the LOTR or Hobbit movies before it. It could also perform well at the box office but with it being a more obscure spinoff (at least for general audiences) I doubt it'll come anywhere near Sonic or Mufasa.