Speaking of the ongoing... the solicit for #21 indicates it happens after the movie. The release date is a week and a half before the movie. Is it going to get moved? Or is the solicit wrong? (Or will there be spoilers?)
With IDW publishing, it's safe to assume the release date will be delayed. The last few issues have been released further and further back in the month. We can probably expect that issue (21) to be shipped on the final Wednesday in May or possibly pushed into the next month.