There is no release date yet, no. But she should appear on the PC beta shortly
We know part of her moveset. I'll compile a list in a bit, might add in pictures later.
We know:
s.LP, walks like an egyptian with snake hands that bite
s.MK, one leg transforms into blood snake, is then chopped into pieces with mic scythe
s.HP, mic strike, then blood wing strike, then mic strike
standing Grab, sweeps the leg with mic, then grinds you into the ground
cr.LP, lower jaw protrudes, then skull follows as a snake or jackal bite
cr.LK, leg extends and transforms into cat that claws
cr.MP, (likely) turns into sphinx, paws hit
cr.HP, arms turn to wings that are extended, and then brought together over her head
cr.HK, summons a bloody boat and relaxes
j.LP, headdress turns into egyptian
sistrum that is used to tap opponent
j.MP, arms turn into crane which strikes with its head
j.MK, (likely) leg extends and transforms into hieroglyphs and stays out (like a smash sex kick)
Airgrab, turns into harpy and grabs and then either soars into the sky and slams down or grinds them along the ground, seems to have divekick-like version
Servant Summon special, summons
Albus from the ground for a grab,
Horace from the sky for a divekick or both from the side in a chariot (the chariot might be a super)
Snapback, summons reeds and cuts them down with mic
Blood Hippos, (teased) just were mentioned in PS blogpost
we also know some hitstuns, her
tech, some thrown frames, her
walk, her dash, her
backdash, her
burst, her jump, her blocks (
j), her
s.Pushblock(s?) her
intro, her
time out, her
assist taunt her
crouch and her
idle
there're more images in
Balder's post
Feel free to correct me if I made a mistake somewhere or forgot something.