Where did you see this? None of the major volleyball sites have said anything about this, I don't think it's true.
Sesi Bauru have been making moves as per usual in the transfer market. They renewed with Dani Lins, Leia, Mayany, Mayhara, signed Bia and were on the bidding war for Natalia. Today Melhor do Volei (tier 1 for Brazilian news) even reported that Kasiely signed with Sesi Bauru from Praia.
Months ago, when Sesi tried to make Dani Lins, Mayany and other players from the main team play in Superliga C. The article said Sesi was no longer willing to be just a sponsor for the Bauru club, but would like to come back to Superliga A with its own team (and its own CNPJ). Both the men's and women's team would play in the new arena Sesi build in Bauru (where the men's team actually transferred this season), making the Bauru club possibly disappear.
Not sure what is going to happen now, because Sesi wasn't allowed to play with Dani Lins and so on and they didn't get promoted from Superliga C to Superliga B, so there is no chance their own team may play Superliga A next season.