Nvidia and Respawn have been working together to bring PC gamers playing Titanfall some additional eye candy. In the coming days and weeks, new visual features will be added to the game.

Nvidia offers up some insight in their blog.
“We are working towards implementing several NVIDIA GameWorks technologies that can make Titanfall look and play even better, including TXAA for high quality anti-aliasing and HBAO+ technologies for improved shadow details,” said Vince Zampella of Respawn Entertainment. “We will also be working towards updates for SLI and 4k support to ensure a fantastic high end PC experience.”

TXAA stands for Temporal anti-aliasing and will "reduce the crawling and flickering seen in motion when playing games." It's said to be the highest quality AA method currently available. The HBAO+ being added will make for some better looking shadows that "react accurately on and around objects" in the game.

SLI and 4K resolution support should be self-explanatory.