Deputy Pringle, a former member of Sinn Fein, has had discussions with former junior health minister Roisin Shortall.
A number of other former senior Labour party members have been involved.
The Killybegs man, who last week attended the opening of an office by Gaoth Dobhair local election candidate Micheal Mac Giolla Easbuig, is understood to be involved in early discussions on the issue.
The former county councillor will face an uphill battle to retain his seat at the next election as Donegal is put into one constituency and the number of TDs reduced from six to five.
The possible new grouping could include other TDs from the Technical Group in the Dail.
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