While my theory is based on various sci-fi so should be taken with a mine of salt, my guess is that USA will split into three different countries: NUSA (lol Cyberpunk) which will comprise of the original 13 colony states and the upper North East, The California Republic which will essentially be the West and NW and in good relations with NUSA but with different legislature, and the South which might be called anything from Texas, New Texas, Republic of Texas, or New Louisiana Territory, which will essentially be a war-torn area full of religious extremists not unlike Middle-Eastern areas after the West had their way with them. It will be full of forever wars by religious factions funded by the MIC shareholders of various other countries but in the public face it'll be covered by the media as religious extremism and/or patriotic fanaticism while ignoring the material reality and history of the situation.