It is thought the Sound Of The Underground hitmakers are keen to bag the likes of Leona Lewisand Alexandra Burke as support acts and are also looking at shooting a behind-the-scenes documentary for ITV2.
Chezza and Co are also said to be in line for an ITV1 Audience With… show, as well as releasing a greatest hits LP - complete with new material.
A source told the tabloid: "The early talk is a short three-week tour towards the end of the year, finishing at Wembley,"
"The Wembley Stadium idea is to get a few of the hottest girlbands and female performers like Leona Lewis, The Saturdaysand Alexandra Burke on board and bill it as Ladies' Night, with them headlining."
They added: "It would be a good way for the band to pretty much say goodbye - maybe forever. If it doesn't come off fans will definitely get the chance to see all five singing together again."