Originally Posted by SpideyFan866
She's under contract with them, but that doesn't stop her from doing other things.
I'm pretty sure she can do this without conflict with Marvel.
Plus, its not like she plays a major character for Marvel. It's likely that her role as Sif will never expand beyond the minor capacity it is right now.
As far as BVS goes, I'm really starting to think:
A) The lead female role/Bruce's love interest is a separate role from Diana.
B) Only Jamie, currently, is in talks for the Diana role.
C) The love interest/female lead is likely for Mercy, and Diana's presence in this film is directly related to her.
I think this could be true. I really hope you're right