Kat Dennings’ answer leaves a lot of room for speculation, especially given that the actress merely stated that she has some “things” she’s done, without revealing whether it’s a film, television show, or something else entirely.
The first possibility is that she’s talking about Thor: Love and Thunder, which is currently filming in Australia.
In an interview with ExtraTV, WandaVision actress Kat Dennings was asked if she had any upcoming projects after the Disney+ series that she could talk about. Dennings then answered that she does have some “things” she’s filmed for Marvel, but that she “probably can’t say” too much more than that:
“There are some things I’ve done for Marvel that are coming out that are not [WandaVision], uh, but I probably can’t say… Yeah we’ll just leave it at… I- Yeah.”
However, Dennings has stated that she’s still unaware if her character will actually appear in that film, given that she’s yet to receive any call from director Taika Waititi or Marvel about it.