Ok, thanks.
Uhm, well, yeah, naturally
This is the strange situation we are in, that while Wanda is becoming more and more popular, *this* is her state in the MCU. Obviously only “Endgame” can change that.
Now, as someone pointed out, these posters are promotion. This costs real money. They wouldn’t do that for characters who aren’t in the movie.
While it is generally assumed that she will be back, I think this is the first quasi-confirmation.
Of course, with the supposed time travel / alternate reality stuff, the appearance of a character doesn’t mean he/she is back permanently. Like e.g. with Loki’s series rumored to be in the past, I assume he stays dead – at least for quite a while.