As the writer of such films as Jurassic Park, Mission Impossible, and Spider-Man, David Koepp has grown into the fifth-most successful screenwriter of all time, his films generating a cumulative $2.3 billion in box-office returns. And as noted in a new item from The Hollywood Reporter, that number is going to jump again soon: Steven Spielberg and Disney have tapped Koepp to draw up a script for the recently announced fifth installment of the Indiana Jones franchise, reuniting the writer and director for the fifth time after Jurassic Park and its sequel The Lost World, War of the Worlds, and the most recent installment of Indy’s adventures of derring-do, The Kingdom of the Crystal Skull.

Naturally, the details of his script have been kept under greater secrecy than the Ark of the Covenant, metaphorically sealed in the reinforced crate of an NDA and stored in the Area 51 that is Hollywood. There’s no telling if Koepp will work from a treatment outlined by franchise co-creator George Lucas as he did during Crystal Skull, and it’ll be a while until anyone knows for sure, with the production targeting a release date of July 19, 2019. (Who knows if we’ll even still be watching movies in our moon-houses by then?)

Lost in the mad flurry of throwaway jokes on the sorely-missed sitcom 30 Rock was a split-second Hollywood news report claiming that a fictitious new project was to be “directed by Martin Scorsese and written by the best screenwriter in the world, whoever that is.” It only lasts a moment, but this gag gets at the constant anonymity that scribes who aren’t named Aaron Sorkin or Charlie Kaufman often contend with. There’s a quiet, thankless dignity in the life of the screenwriter, surrendering authorship of the finished film to the director and leaving fame to the actors. But for a writer as fabulously successful as Koepp, the mountain ranges of money must ease that at least a little.

Koepp faces an unenviable task in conceiving another adventure for America’s favorite adventure-serial hero. Harrison Ford, who will be 77 years old by the time of this film’s eventual release, was a little long in the tooth for the mantle of Indy last time around. In this fifth film, the issue of his advanced age will be impossible to ignore, unable to be defused by the “I’m getting too old for this sh-”-type cracks that lightened Crystal Skull. It will take a creative solution to write around the inexorable progress of time, but if anyone can do it, it’s the man who directed Mortdecai.