JD-U leaders have backed a proposal to rename the party Janata Dal Nitish, putting Nitish Kumar's political legacy at the centre of the party's identity.
The court will hear MLAs' pleas on Wednesday.
The 20 MLAs told the high court that they would move fresh petitions against the taking away of their assembly seats as their pleas had become infructuous after President Ram Nath Kovind put a stamp of approval on the EC's recommendation.
The court also extended till February 7 the interim order restraining the EC from issuing any notification announcing bypolls.
20 legislators disqualified from the Delhi assembly for allegedly holding offices of profit.
The HC refused to stay the Centre's notification disqualifying the 20 MLAs.