Robbie Williams will only reunite with Take That if Jason Orange agrees to return.
The 'Candy' hitmaker - who first left the band in 1995 in order to focus on his own solo career before briefly rejoining in 2011 - has hinted that next year will see a big reunion but he is adamant he'll only do it if Jason - who quit in 2014 - does it too.
Speaking to Closer magazine, he said of rejoining with Jason, Gary Barlow, Howard Donald and Mark Owen: "I'm in if it's a five-piece.
"It's down to Jay. I speak to Jay about twice a year. I don't ask him stuff to do with Take That, but I know the other lads do."
However, even if a reunion doesn't happen next year, the 43-year-old star has no plans to retire any time soon after he wrongly stepped away from music in 2006 when his seventh studio album 'Rudebox' flopped in the charts.
He said recently: "Yeah, 2006 happened, I went on tour and that just fried my brains and I decided that I retired. I didn't tell anybody because I knew I'd possibly been lying to myself. I took to my home, stayed there and grew a beard, chased UFOs, watched 'The Real Housewives of Beverly Hills', Orange County, New Jersey, Atlanta, even Dallas ... And in those three years off my brain turned to Swiss cheese. A man needs a purpose, which is why I came back."
Robbie - who has spent time in rehab on numerous occasions throughout his career for alcoholism, substance abuse, depression and even an addiction to energy drinks Lucozade and Red Bull - has previously credited meeting his wife Ayda Field in 2006 with putting him back on track.