When the Institutional Reformed wanted to beat up on Bahnsen (after he died, especially) and his students, they used Kline’s arguments. When this was happening I warned that Kline came very close to dispensationalism and that Bahnsen’s “TR Critics” didn’t really have a coherent response. I then predicted that they would have trouble applying God’s law today.
Of course, I am no longer a theonomist, but I think I was right. Current sanctification debates bear this out. I will make another prediction: Mainstream Reformed will no longer find Kline useful. They will turn on him. Outside of pockets on the West Coast, Kline’s students views on Two Kingdoms and Republication will be outcasted.
The irony is that I am somewhat sympathetic to Kline now.