The actress played Chloe Sullivan - the love interest of the Green Arrow (Justin Hartley) - on Smallville between 2001 and 2011.
Discussing revamp series Arrow, which stars Stephen Amell in the title role, Mack told TV Guide: "You know, no-one's talked to me about that. I'm not sure."
The 29-year-old star added that any role on Arrow would have to involve "a really great storyline".
"I'm looking forward and so the idea of revisiting a character that I've put to rest is not necessarily the thing that's most exciting in the front of my mind," she explained. "But I never say never."
Arrow was recently voted as the most exciting new CW show by Digital Spy readers.
The series premieres on October 10 in the US and will air on Sky1 in the UK.
> Arrow star Stephen Amell: 'Black Canary could appear'
Watch an extended preview of Arrow below: