Byleth looks absolutely amazing. Honestly, I don't want to strawman anyone here, but for those who downvoted Sakurai's video or is upset about DLC 5... too bad, quite frankly. No one promised the pass would be entirely revolutionary third parties, and in fact, I think this pass has been absolutely amazing. It's packed full of characters with great relations to Nintendo, and although I haven't played Three Houses, my friends who have absolutely loved it, and I think I'll have to pick it up now.
But no, seriously, if you've spent hundreds of hours banking your expectations on completely unrealistic things that have no actual evidence going for them, then you played yourself. Try to be happy with the amazing content we're getting.
(By the way, a monastery stage? That's freaking awesome.)