Frontwoman Amy Lee explained that the band are not sure what they will do next, as there are no plans on recording any new material.
"I'm always playing the piano and harp because I like to, but I haven't been purposeful in my playing. I haven't been sitting down to write," she told NME.
"I'm thinking we'll take a break first. I'm really not sure what I'll do next. At the end of any really long tour you need to get your head in order. I think at the end of the run we'll go on a break for a while and figure things out."
The metal band spent five years away during their second album and last year's self-titled third LP.
When asked if their next hiatus would be as long, she said: "I don't know. Taking long breaks is seen as a bad thing, but I don't think it's a bad thing. People have the idea that you have to keep putting stuff out while people remember you.
"But I'd rather make something that's awesome and then make people remember again. I hope it doesn't take five years, but I don't want to put a timeline on it either."
Evanescence will embark a mini-UK arena tour in early November.
They will start at Nottingham's Capital FM Arena on November 5, followed by the Manchester Arena on November 6 and then Birmingham Indoor Arena on November 8.
Finally, they will end their tour at London's Wembley Arena on November 9. The Used will support each of the gigs.
Watch the video for Evanescence's 'What You Want' below: