Arrow Season 2 spoilers just heated up shortly before Stephen Amell and company attend the Comic-Con International on Saturday in San Diego. Fans of DC Comics' Green Arrow have been expecting Katie Cassidy to sport the Black Canary costume soon. But in a "confusing" report, the role was given to Caity Lotz. What is going on here?

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Creative liberties considered, The CW's Arrow was hardly expected to stay faithful to the heroes' original stories in the comics. After everything that's happened in Season 1, fans already know Arrow Season 2 would dish more surprises here and there. But giving the Black Canary role to someone other than Katie Cassidy's Dinah Laurel Lance (or her mother) seems to be straying too far. Some fans thought Caity Lotz' character would later die, and that's how Laurel becomes BC. But there's more.

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In its report, The Wrap said, "Lotz is expected to eventually become a series regular." In social media channels where this piece of Arrow Season 2 news is being circulated, Arrow viewers are calling the scoop "confusing" if not "BS." In an earlier interview, Katie Cassidy has spoken about some fight trainings and getting more comfortable in taking other avenues to pursue justice.

Still, Katie did say she hoped Laurel would be "evolving into Black Canary" by Season 2. Perhaps Katie does become BC -- eventually. Say, Arrow Season 3?

More updates are expected from showrunners Greg Berlanti,Marc Guggenheim, and Andrew Kreisberg at the Comic-Con. Stephen Amell (Oliver Queen, Hood Guy, Green Arrow) himself has spoken months ago that Arrow Season 2 will look and feel like a different series from its freshman year on TV.

Firefly's Summer Glau Joins Arrow Season 2

In a separate report, The Wrap also dished Summer Glau's entry in Arrow Season 2. The "Terminator" and "Firefly" star will play Isabel Rochev.

A rep for Arrow has told The Wrap, Glau is portratying "the enigmatically beautiful and professionally dangerous Isabel Rochev, Vice President of Acquisitions of Stellmoor International." In the comics, she goes after Queen Consolidated.

Whatever Arrow Season 2 brings to Summer in the show's next chapter, one thing's for sure: The CW just got hotter.

More Arrow Season 2, TV Guide Features:
Arrow Season 2 Spoilers: Stephen Amell, More DC Heroes, Manu Bennett; More Action in 'All-Hunks' TV [PHOTOS]
Comic-Con (SDCC) 2013 TV Shows: How I Met Your Mother, Arrow, Once Upon a Time, Big Bang Theory, Supernatural; Which TV Stars are Attending? [PHOTOS]
Comic-Con 2013 Cosplay: Who Will You Be at the SDCC Event? Here are Some Sexy Ideas! [PHOTOS]