The first lineup of the girl group - which includes Keisha Buchanan, Mutya Buena and Siobhan Donaghy - were reported to have recorded new songs together, with a plan to relaunch under another name later this year.
However, Buena has since tweeted that she has no plans to record with her fellow band members and is apparently concentrating on new solo material.
She wrote: "No track [with] keisha or professor G he was around tha studio. im jus workin on my stuff @ tha moment. (sic)"
Meanwhile, a spokesperson for Buchanan told Digital Spy: "Keisha has been working on a number of exciting projects both old and new.
"She is in the final stages of completing her much-awaited solo album and believes her fans will be equally excited with what's to come."
> Mutya Buena wins rights to Sugababes name
Watch the original Sugababes perform their debut hit 'Overload' live below: