Kharma is reportedly ring-ready; WWE is just waiting for a good opportunity to re-insert her into the show.
Her WWE debut was hugely popular with fans, so I would not be shocked if WWE seeks to repeat it and have her gatecrash Money in the Bank.
I am sure WWE would want a big name like Kharma on the marquee for SummerSlam, and they will want time to build up a feud in time for that show. This means I believe the latest they could have her re-debut would be two weeks before SummerSlam, to allow more than one appearance ahead of the event.
The 1,000th episode of Raw on July 23 might seem the perfect time for a big-name return, but I have to wonder if WWE has time to fit Kharma in there, even with the three hour time frame.
Raw 1000 is due to see Bret Hart, The Rock, D-Generation X, Mick Foley, Brock Lesnar and The Undertaker all popping by to say hi, and both Mark Henry and Rey Mysterio are due to make their returns to the company at this point too.
All this on top of whatever big-names CM Punk and John Cena are getting up to is gonna make for a packed show, and WWE will want to save some of its big guns—such as Kharma—for other shows. She'll get buried in the shuffle, otherwise.