I don't think Larian are going to change anything about Shadowheart. They have her in full Sharran gear covered in Sharran symbols in loadscreen art, and her description on the BG3 website goes:
A loyal cleric of Shar, Shadowheart is the sole survivor of a holy mission undertaken on the Mistress of the Night’s behest. She alone must deliver a relic of immense power to her coven in Baldur’s Gate, while threatened by a strange new magic that is burgeoning from within.
I guess intrigue is so last season over at Fun Videogames Inc. Strange new magic from the tadpole, ok.
Astarion:
Astarion prowled the night as a vampire spawn for centuries, serving a sadistic master until he was snatched away. Now he can walk in the light and has the chance at a new life, but how long can he keep his past buried?
Centuries as a vampire spawn, level 1. Check.
Gale:
Gale is a wizard prodigy whose love for a goddess made him attempt a dread feat no mortal should. Blighted by the forbidden magic of ancient Netheril, Gale strives to undo the corruption that is overtaking him and win back his goddess’ favour before he becomes a destroyer of worlds.
Destroyer of worlds, ok. Thanks for letting us know before finding out his secrets through game events.
Lae'zel:
Lae'zel is a ferocious Githyanki warrior, mighty even by the standards of her mind flayer-hunting kind. Faced with transforming into the very monster she's sworn to destroy, Lae'zel must prove herself worthy of rejoining her people - if they don't execute her first.
Execute.. thanks for confirming the "cure" part of the plot so no unnecessary surprises at the Creche can be experienced. So mighty by Githyanki standards Sarth Baretha can take her down before she gets a turn.
I find all this really lackluster as I really like to experience this stuff first hand and actually be surprised by the characters and the plot. Major spoilers, really. Just to have playable Origin characters I will never even consider using. I didn't want to know about Shar, and I didn't want to know about vampire. I don't want to play AS my companions. Why would anyone?
