I wonder why you have Damage and Tomcat as regulars, neither were terribly memorable, though Damage in particular had a rough time in the book, as with Atom Smasher I was never convinced with the treatment Geoff Johns handed to Grant and felt he was rather wasted for a moments sensationalism.
Logically if DC are set on returning the JSA it will (or should) be a given that Jay Garrick will be automatically in the group, Hourman and Wildcat are almost certain, since Johnny Thunder is an old man will his unnamed granddaughter take on his Thunderbolt perhaps? Or perhaps she has a grandson named Jakeem...?
I will go on record and predict Stargirl will be in there - she really has not any other place to go in the DCU and frankly the JSA is her home in the same way the Titans is Vic Stone's home. But will the Hawks make the cut I wonder...? Surely yes, I would see Carter and Shiera/Kendra as likely as quite apart from the Legends of Tomorrow television exposure the revived Katar Hol has not been able to find any real traction in the DC stable since his revival in 2011. Carter and Shiera/Kendra seem to have supplanted him and Shayera in the audiences affections and recognition factor.
Will they have a Superman on the group though?
As that would have been a good fit for the Superdad, if the new 52 had not been killed off!