NBC has shown no interest in this property: we’ve seen no new licensing for collectibles, though she’s a prime property for nostalgia investors. There’s been zero media interest (Wonder Woman/Supergirl is all the chatter) and no announcements since JGM spoke about leaving t1oo to work on his own show (implied to be Xena) last summer.
It’s always a possibility, and WW could be damming up the works, pushing a reboot further and further out. Maybe write to Rob Tapert or JGM and see if you get a response. Sorry it makes you sad – have you read the recent Xena comics? The quality of the art varies, but the story was quite good. I suggest having a look. Take care.