According to GameInformer, Hello Games has a Day One patch that will wipe any pre-existing save files from PS4 consoles and PCs. Sony gave the video game magazine this official statement:
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For those users who have obtained early copies of No Man’s Sky, their save progress will not carry over to the final game after the universe has been regenerated for launch."
Sony also revealed that leaked copies floating out there in the wild are stemming from shops breaking street date, not from digital codes for reviewers. Based on this statement, it sounds as if they're zeroing in on the source of the leaks and if its an actual retail shop, expect all sort of legal charges to be thrown about.
The embargo for reviews and streaming actually lifts today at 9 p.m PST. No Man's Sky will be released on August 09 on PS4. The PC version has been pushed back to Friday, August 12 via Steam to match the worldwide rollout of the game.
Inspired by classic science-fiction and its overwhelming sense of adventure and imagination, Hello Games presents a game of unprecedented scale and ambition. In No Man's Sky you explore an infinite universe where you will discover unique never-before-seen planets and lifeforms. A mystery lies at the center of the galaxy, an irresistible pulse that draws you on an epic voyage to discover the true nature of the cosmos.
Your journey will be charged with danger, encountering hostile creatures and fierce pirates; in order to survive, you will need to prepare, upgrading your ship, suit and weapons. Whether you choose to fight, trade or explore, every decision you make has consequences, shaping your journey as you travel ever deeper into No Man's Sky. No Man's Sky is an epic science fiction adventure set across an infinite universe, in which every star is the light of a distant sun, orbited by planets filled with life - each yours to visit. Explore never before seen worlds, discover unique lifeforms and trade, fight and survive on a galactic scale.
Explore a universe of possibilities - With over 18,446,744,073,709,551,616 (18 quintillion) possible planets, No Man's Sky's procedurally generated galaxy gives players an unparalleled opportunity to explore worlds that no one has ever visited before. Exploration is entirely seamless, with no loading screens, whether you're flying from space to a planet's surface or even warping between solar systems.
Forge your own path to the center of the galaxy - Whether you consider yourself a trader, an explorer or a fighter, there's no limit to how you play No Man's Sky. You may slip between play-styles freely, from pirate to miner, bounty hunter to surveyor, but know that any action can have lasting consequences.