The singer revealed that the band will perform shows around the country at the beginning of 2013 to celebrate their tenth anniversary.
"It's time to come back. At the end of the year it would have been ten years and it feels like the right time to regroup. I know everyone's been speculating about what we will do. It will be arena dates at the start of next year and we will have new music to go with it," Coyle told Dean Piper at Sir Elton John's Oscar party in LA.
"One or two singles I would think. It depends on how well it goes with the tour announcement. If things work well, there's enough demand and we're all in the same head space as a band then who knows what could happen.
"I'm definitely looking forward to seeing the girls. It's been a long time since we've all been in the same room together. But the truth is there's no big problem with me and the girls. I've been living here and not been home much and I have a life here now."
Girls Aloud were expected to make a comeback this year, although Nicola Roberts had previously announced that their plans had been delayed.
"I've been really worried about Sarah and I'm glad to see she's getting better," Coyle added. "I'm thrilled Kimberley's doing well on the West End and Cheryl and Nicola are working hard on their music.
"Everyone was so keen to put Cheryl and me against each other - but we just weren't enemies. We are very different people musically, that's all."
Coyle concluded by insisting that she is "proud" of her solo album, saying releasing music was "never about chart positions".
> Girls Aloud 'issued Sarah Harding rehab ultimatum for reunion'
Watch Girls Aloud perform 'The Promise' live at The Brit Awards 2009 below: