Jodie Whittaker couldn’t say what her big speech in Doctor Who Season 11 is about, although it’s possible a bit of it is contained within the recently released trailer.
Of course, things are shot out of sequence on television all the time, so it’s entirely possible she’s referring to a completely different speech that happens later on in the season.
It would also make sense Whittaker would film that scene in the first week considering it’s the sort of speech that’d be given towards the beginning of the Season 11 rather than later.
In it, Whittaker’s Doctor explains the all-new world she’s now a part of and asks her new “friends” to join her, so it certainly sounds like inspirational speech territory, and one of those speeches where the writers are subtly addressing the fanbase.