I have mentioned that I do not feel like she is going to return so " dead " is a better term. Tekken likes to keep its characters somewhat story adjacent to why they are on the roster, and her's would be , kind of terrible.
Why wouldn't Jun return?
With Tekken's story, she can easily get back and fit into a storyline.
She's also extremely popular based on the requests up to the launch of Tag 2.
Going to be wierd without the tag system again
Based on that one guys interview, it seems it'll be solo yeah.
But Harada-san also talked about, wanting to keep the Tag system, even in numbered releases.