Yes, GTA 5 will arrive on PC later this year. Don't start salivating over the inevitable graphics mods just yet, though: there's still a reason to appreciate the game's slightly older brother. That reason is iCEnhancer 3.0, the new release of the excellent Grand Theft Auto 4 mod. This version updates the ENB, upgrades multiple post-processing effects and improves the game's performance.
Here's the patch list for this new version:
Those improvements do come with a few known issues—specifically with AMD cards, where users might notice performance or SSAO issues.
The mod's website is currently dead, as people rush to get hold of the new version. For now, then, head to its Facebook page where you'll find a list of mirrors.