The 'Spider-Man: Brand New Day' post-credits scene is a cosmic cliffhanger. Here's what it could mean.

Tom Holland in "Spider-Man: Brand New Day." Jay Maidment/Sony/Marvel "Spider-Man: Brand New Day" has an end-credits scene. It gives us a hint as to where Spidey will show up next. Major spoilers ahead for "Spider-Man: Brand New Day." As the credits roll, then keep rolling without a mid-credits scene at the end of "Spider-Man: Brand New Day," your Spidey senses may begin to tingle in a bad way. But rest assured, there is an end-credits scene in "Spider-Man: Brand New Day" — you just have to…