On one hand I'm a bit deflated that we aren't getting a full DH wave, but on the other we are getting so many iconic scenes from the earlier films that we haven't got in the modern wave. Particularly excited for the Chamber of Secrets set. Would have expected Pomfrey over Sinistra, who is far more obscure, but I like that they're mixing it up a bit and not just throwing in another Hagrid or something.
I don't think Deathly Hallows as a wave is too mature, but I think they'll intentionally mix it with the anniversary this year and maybe more Hogwarts Moments set next year to get some of the more light-hearted atmosphere from the earlier films? We literally got Voldemort's rebirth complete with cauldron, creepy masked Death Eater with the long hat, and baby Voldemort, so I don't think DH being "violent" is going to stop LEGO. Really they just need to avoid Dobby's death, Bathilda Bagshot and Ron's splinching, I imagine.
I wonder what the remaining sets will be? I don't think they'll do another Hogwarts set this year, which kind of rules out the courtyard or the bridge, which I think are the only major Hogwarts locations left out at this point. Maybe it will be the big set for next year?
Gringotts being the big D2C is a possibility, I think they could sell Gringotts alone whereas the other shops in DA work best as a set. For the price though I'm expecting the dragon, and maybe some vaults underneath such as Harry's vault, the Philosopher's Stone vault and the Lestrange vault (maybe an empty Weasley vault?) (And maybe they'll do a second side of the Alley next year - The Leaky Cauldron, Madam Malkins, Eeylops, Magical Menagarie, Potage's, Slug & Jiggers, Borgin & Burkes/a KA offshoot are all options).
The Tent scene with the lake could be a fun, cheaper diarama-type forest set like the Expecto Patronum or Aragog sets. Maybe a Ministry of Magic set? I'm also expecting another buildable creature ala Hedwig, perhaps a buildable Buckbeak, Fawkes or a Niffler? A Grimmauld Place diarama of the Black Family Wall? I don't know.
I think LEGO are going to stretch the Deathly Hallows content out into 2022 as we are missing so many good DH figures like Bill and Fleur, Aberforth, Scabior, Neville and Narcissa, the Ministry disguises, the Trio have a few costume changes... they could even be keeping some of them back for a CMF next year?