3840 x 1600 is the perfect resolution for programming in my opinion, and is now starting to become more widely available in 38" wide form factor (equivalent to a "normal" 32" but wider). At this size, you can finally comfortably have 2-3 normal-size windows side by side: your editor/IDE, your browser/app, and one third for documentation, without having to go multi-monitor. The 1600p vertical resolution is fantastic for coding. If you're interested in this size, LG 38WN95C is a great one just starting to become available that hits all the marks: Thunderbolt, 144HZ refresh rate (including G-Sync and Adaptive Sync), IPS panel (must) and looks "normal" without any gamer aesthetics or RGB lighting.
Unfortunately it's going to be a very long time before we get high-dpi equivalents. 4K, which is frequently 1080p equivalent in terms of workspace, is just not doable after you've been using 1600p.