Revenge's Charlotte Clarke might make it out of rehab before season 4 comes to a close.

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A new wave of drug addiction and poor choices prompted Emily's troubled half-sibling to depart the Hamptons following the events of "Damages." Now, it appears actress Christa B. Allen is back on set as filming for season 4 enters the homestretch.

Without comment, Allen posted a photo of herself with an untitled Revenge script on Saturday (see image above). Considering Gabriel Mann (Nolan) recently read the script for the upcoming finale, there is a good chance Charlotte will appear in the climactic episode.

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Allen, however, is keeping mum regarding a possible return.

"I haven't heard anything," Allen confided to TV Line in March. "But I know that they're still waiting to hear on their next season pickup, so I think it'll depend largely on that. ... They do try to keep their options open on that show."

Find out more when Revenge airs Sundays at 10 p.m. ET on ABC. Click the video below to see a preview for the series' latest episode, "Clarity."

Tags: Revenge television ABC