Rosa Curling, from law firm Leigh Day who represented the Save Lewisham Hospital campaign, says they are not worried about the government's continued fight to close some services down.
"We remain confident that the Court of Appeal will uphold Mr Justice Silber's decision" she said.
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The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.
Mayor of Newham Sir Robin Wales criticised the International Olympic Committee on the fourth anniversary of the opening ceremony.