There have been rumors that Titanfall would launch for Xbox One at the same resolution as the beta, which was officially confirmed in an interview with Digital Foundry. Respawn lead engineer Richard Baker was asked to extrapolate on that confirmation, specifically whether any post-release updates are in store:
We’re going to experiment. The target is either 1080p non-anti-aliased or 900p with FXAA. We’re trying to optimize… we don’t want to give up anything for higher res. So far we’re not 100 per cent happy with any of the options, we’re still working on it. For day one it’s not going to change. We’re still looking at it for post-day one. We’re likely to increase resolution after we ship.
A lot of the performance is on the GPU side. There’s still room for optimization and we’re still working on it. Ideally it would have been a rock-solid 60 all the time when we shipped but obviously when there’s big fights going on, lots of particle effects, lots of physics objects… we’re still working to condense the systems, make them more parallel so we can hit 60 all the time, ideally.
Baker also confirmed that gameplay performance has been overall increased, due to some optimizations made after the beta released.