LG is coming with a 34" 21:9 monitor that supports Freesync, which may even have an IPS panel and a 3440 by 1440 resolution. That, or a high-quality TN panel.
LG To Showcase 21:9 34-Inch Monitor With Freesync At CES : Read more
LG To Showcase 21:9 34-Inch Monitor With Freesync At CES : Read more