The trio will join winner Sam Bailey in signing up with the Sony music label as decisions are made with the series now over.
But it means that Luke Friend, who finished in third place in the final, will be snubbed.
According to The Sun, label bosses reckon that Rough Copy could become a 'new JLS' after they bowed out with their farewell tour last month.
The newspaper reports that Nicholas will be signed up by RCA, who helped send Jahmene Douglas to Number 1 last year, while Tamera will get a "development deal" to help turn her into a chart topper.
An insider told the tabloid today: “No final decisions have yet been taken on who aside from Sam Bailey will get deals.
"But Cowell and Sony have their eyes on Rough Copy and Nicholas who are likely to get snapped up next month."
The source added: “Despite growing through the show, it is looking unlikely Luke will get a deal within Sony, although he is sure to have interest from other companies.
“Other acts like Kingsland Road are sure to bag deals — but they’ll have to wait three months until they can do so.”
The top eight finalists from last year’s live final line up – Abi Alton, Hannah Barrett, Luke Friend, Nicholas McDonald, Rough Copy, Sam Bailey, Sam Callahan and Tamera Foster – will all be on the bill for this year’s tour, which starts in February.