I doubt it. Remember they finished principle photography and reshoots before Carrie Fisher passed away. Given she was supposed to have a big role in IX it's unlikely they could rework the plot to have her die.
>The trailer also gives viewers a fleeting but emotional moment with General Leia, who looks as if she may be in the literal crosshairs of her vengeful son Kylo Ren. The Last Jedi marks the final performance of actress Carrie Fisher, who passed away before shooting could commence on Episode IX. According to Johnson, who considered fellow screenwriter Fisher “one of my heroes,” the actress went to great lengths to make sure that Leia’s every moment was true to the character she had created in A New Hope.
>“She was so conscious of the place that Leia had, not just broadly in the culture, but very specifically in terms of girls who grew up watching Star Wars when Leia was the only female hero on the screen,” Johnson says. “She really wanted to do right by that, drawing the character forward. That was something that she would always be pulling us back to. And for me it was fantastic, because besides all the other benefits of having a fantastic writer like Carrie there by my side while we’re making this movie, just having a voice that was like a compass needle that would always pull it back in the right direction of, This is what this character means and this is what we always have to make sure that she’s serving, with her strength and also with her weaknesses — showing a fully realized character who is going to be inspiring to the folks who grew up with Leia.”