KEDC looks to be getting a runway extension as part of their master plan. RWY 13/31 will be extending at the RWY 31 threshold around 1,000ft. Bringing the runway length from 6,025ft to around 7,000ft. The new RWY 31 approach will have precision approach surface 50:1.
Information on what a precision approach runway entails can be found here:
https://www.ngs.noaa.gov/AERO/oisspec.html
The Austin Executive Airport master plan so far can be found here:
http://www.austinexecutiveairport.com/plan.html