We're very... unsurprised (don't worry, you can use "un-anything" when talking about Wonderland).
BUT we also have to be honest. We would have been a little... discombobulated if someone else had worn his hat as well.
He pulled some very different (acting) rabbits out of his... "bonnet" on that role (sorry - the puns are endless and difficult to avoid when you're late for an important date with your writing desk..). Sensitive, sympathetic, entirely mad and a little-much (yes, little-much) disturbing, yet you can almost see Alice falling for him. Even with those weridlio contact lenses. (Looking into those would be a challenge, even with Depp's eyes behind them!) So, yes, quite a feat. We doff our... caps on that account.
Whether you liked the movie or not, if you're planing on checking out the sequel, not having Mr. Depp on board would be... well, possibly mad.
So, it's OK to cheer. Rah.
On what Alice 2 - Through the Looking Glass will be like content-wise. here's an excerpt from whatculture, summarizing the details so far:
Depp’s production company Infinitum Nihil... are now putting the wheels in motion on Through The Looking Glass that would see Depp reprise his role as the Mad Hatter from Tim Burton’s 2010 live-action/CGI adaptation, with original screenwriter Linda Woolverton again on writing duties.
Although the planned movie shares the same name as Lewis Carroll’s own follow-up to his classic tale about Alice and that fabled rabbit hole… it likely won’t resemble too much of the novel as Burton’s 2010 film was already a sequel of sorts to both Alice In Wonderland and Through The Looking Glass.
(No word on the other original cast members joining) ...though it seems likely offers will be put out to them.
There’s (also) no word yet on whether Tim Burton would direct... (Edit FTNH: or if James Bobin (The Muppets) would step into Burton's shoes. He's been in talks with Disney since late May about that possibility.)Burton's Alice without Burton? Depp in a fantasy without Burton?? And what if Alice isn't herself? (I mean, if she's not Mia Wasikowska, because Alice is never herself, which is sort of the point...)
This is way weirder news than Depp returning as Hatter.
Curiouser and curiouser.