How to repeat an IF statement
Like you suggested in your comment, you can implement a state machine, but the simplest would probably be setting a flag bool a_flag in this if(lcdScroll==LOW) clause and checking if(a_flag) in the highest scope of the loop() section. This is where you print("test");.

In respect to your code this will look like:

bool a_flag=false;
void loop() {
  // some irrelevant stuff
  if ( newSwitchState != oldSwitchState) {
    // some stuff
    if ( lcdScroll == LOW ){
      // stuff you would handle here
      a_flag=true;
    }
    else {
      // stuff you would handle here
      a_flag=false;
    }
  }
  if (a_flag) Serial.println("lcdScroll is LOW");
  else Serial.println("lcdScroll is HIGH");
}


Beside this general solution you could simply do the following in your specific case:

loop(){

  // your actual code

  if (lcdScroll) Serial.println("lcdScroll is LOW");
  else Serial.println("lcdScroll is HIGH");
}