Indiana Jones and the Dial of Destiny will potentially welcome the return of Karen Allen's Marion Ravenwood. Like Harrison Ford and his iconic, eponymous treasure-seeker, actress Allen last played her character in 2008's Kingdom of the Crystal Skull, yet despite other legacy names like John Rhys-Davies (Sallah) coming back for next year's fifth Indiana Jones movie, it's on the hush-hush as to whether Allen is involved. "I could tell you, but then I'd have to kill you!" the star recently told Showbiz411. "Seriously, I can't say a word". Related: The Sandman star praises "badass" Indiana Jones 5 In the main,...