The blood pact and the DADA is perfectly okay and neither conflict with canon if you think about it, but still - McGonagall could _easily_ have swapped for Professor Merrythought. I also wished we had seen Professor Slughorn in the movie. Cameos like that are fine, when we first are at Hogwarts, we could and should see Hogwarts residents, but - not residents that has yet to be born.
But going to Durmstrang would also be kind of risky. Even if he could find the school, (and the likelihood of that is much, much less so than for anyone to find Hogwarts, since Durmstrang are far more secretive and all visitors has to agree to undergo a Memory Charm so prevent them from knowing how they got there), and break in, he'd be in a foreign land with little to no supporters to come to the rescue. Voldemort may be powerful, but he is by no means unstoppable, so all the students and staff of Durmstrang had to do if he was discovered upon entering would be to keep him busy until the local Ministry of Magic was notified, and they'd send every Auror and lawman necessary to overwhelm the Dark Lord by sheer numbers. And even if that failed, Voldemort had just exposed himself and his nefarious activities, (remember, the Ministry propaganda in Great Britain after Voldemort took it over was that Harry killed Dumbledore and Rufus Scrimgeour resigned, and they probably made sure nothing too scandalous was passed on to the greater wizarding world), but if the European Ministry of Magic could verify Voldemort broke into Durmstrang, the International Confederation of Wizards would be informed, and Voldemort's regime wouldn't be likely to last long after that.
With respect, I feel we are going a bit off track here.
That's not really relevant to the topic of this discussion, Gnosuknowitall. May I suggest that you start your own discussion on the subject?
Professor Dumbledore became Headmaster around 1968 or 1969, so Professor Dippet would've headed the school until then.
Hufflepuff, I'd say, though that'd be a discussion for another day.
I wonder if Armando Dippet is the Headmaster of Hogwarts in Crimes of Grindelwald?
I would also like to see some joint efforts of different wizarding governments to capture Grindelwald.
I would have liked Percival Graves to turn up from nowhere in one of the movies, engage in a brief duel against some of the good guys (in self-defence, as they see Graves and instinctively think of Grindelwald), and Graves somehow convinces Tina that it is really him, and then he joins them. Doubt it'll happen, though.
We have heard from no less a person than J. K. Rowling herself that Hogwarts is, by and large, the same as it was in Harry Potter's time as a student, although naturally the faculty would consist of different people. Indeed, people like Snape, will not be born before several decades have passed. I for one would be very interested to hear more about who teaches in 1927.
Will we perchance catch a glimpse of a young Horace Slughorn? Professor Galatea Merrythought will one day assume Dumbledore's current position of Defence Against the Dark Arts instructor, yet she should by my calculations already teach at the school. So what e exactly is she up to? Professor Duppet, the Headmaster of Hogwarts immediately before Dumbledore, is said to have confided only in a select few of his fellow staff members. As a still relatively young teacher, (though not so much so as he was at the time of Newt's expulsion), have Dumbledore earned his confidence yet?
Born in 1637 and as such pretty ancient even by wizarding standards, yet still entrusted the stewardship of one of the most magical educational institutions known to wizardkind and charged with assuring the safety of all within it, he even became a recipient of a Famous Witches and Wizards Card for his tenure. From this, we may assume that he was a well-known and well respected member of the magical community. As someone who was around fifty at the time the International Confederation of Wizard' Statute of Secrecy and was present when the Ministry of Magic was first established in 1707, one would think he by 1927 would long since have become someone whose counsel the Ministry would value greatly. Maybe as a Wizengamot Elder?
Regardless, I wonder what kind of weight his word would carry should he be heading the school and I decide to come to Dumbledore's defence. I am, of course, well aware of the fact that The Crimes of Grindelwald is not a film about the life at Hogwarts, but as have been pointed out by both Rowling, David Yates, Jude Law, among others, Hogwarts is a place of great nostalgia. I, at least, will be crossing my fingers for some sort of insight into the place throughout the remaining four upcoming movies.