The rumor was passed on by Dusk Golem, an industry-recognized leaker who reported many hit leaks regarding Resident Evil: Village. He noted, however, that he is not entirely sure whether we will see Jill in RE9 or in the upcoming Resident Evil: Outrage .
The ninth installment of the series will most likely end the trilogy, which includes Resident Evil 7 and the aforementioned Resident Evil: Village . It is not known how Jill’s fate could have been woven into the story, as she would be around 50 years old at the time of the events of nine. It is possible that fans would not necessarily like such an aged heroine, and the developers are well aware of this. This could be one of the reasons why Valentine’s eventual return to the series would only remain in the gossip zone.
However, it should be remembered that the Dusk Golem is a rather reliable source when it comes to Capcom games, so it is worth taking into account the information provided by him. It is very possible that Jill will actually appear in one of the upcoming installments of Resident Evil , and the leak will actually turn out to be real.