Haidara suffered a knee injury against Manchester United early this month.
John Carver hopes to have midfielder Mehdi Abeid back for the Wear-Tyne derby on April 5, and winger Rolando Aarons could also return from long-term injury next month.
Aarons has been sidelined with hamstring and thigh problems since November.
Haidara – who has what Carver describes as an “ongoing issue” with his knee – isn’t expected to be available in the “near future” as his problem is further assessed.
“There’s no sign of anyone coming back in the near future other than Mehdi,” said Carver.
Left-back Haidara’s absence – and the need to switch right-back Daryl Janmaat to central defence with captain Fabricio Coloccini suspended – has left Carver with a patched-up back four.
But the club remains hopeful that Haidara will return late in the campaign.