Not sure what the threat was. I just thought she was blathering on, as usual.
But re the new book idea. As
@Ginnyreturns posted above, Ms Fraser already has a non-fiction book about Venice planned, and with this new information regarding "no holds barred" I imagine she is going to write about the underground wrestling scene in Venice. I didn't really know that was a thing, so it might be interesting, albeit a tad niche.
There are probably lots of generic books about Venice ...... canals, gondolas, dear dear Peggy (Guggenheim) etc, so she may have just found her USP.
Good on her!
Wrestling in Venice, by Elizabeth, aged 50 (and a MUTHA!!). IYKYK!