The good news is that the 2x SIM version of the device is in the works; the bad news is that it will probably be exclusive to China. China Telecom has just published the render of the dual-SIM variant of the iPhone Xs (or Xs Max, the jury is still out on that one). Beta 5 of the iOS 12 allegedly supports this option. According to Bloomberg, iPhone Xs with dual-SIM will be available in countries other than China, but in very limited numbers.