Why is Godzilla scheduled for the end of May? Warner makes such baffling choices sometimes, but sure let's release two Legendary Pictures movies within a month of each other, both with significant stake in the (pre-)teen boy demographic. Although Pikachu is of course much more of a 4-quarters film than Gojira.
By the way, in regards to the poll, I'm ready to make another "New Mutants will pass 1 billion" style bold prediction: Detective Pika is going to blow past the 1 billion Dollar mark. Don't think it'll outgross Avengers 4, since the last one made 2 billion, but if Pikachu makes 100 million on opening weekend, you heard it here first.
If that movie somehow turns out bad, their marketing department deserves a raise for making it seem super fun.