For the redstone 1.5 neather quartz a new ore only found in the neather is going to become valuable and is going to be a reason to go into the neather once again, so unless you want to venture further and loads new chunks, a reset would be necessary, and the neather quartz may be a hint at what is to come in terms on neather ores!
I agree with Q Dont do it! Hell doesnt get reset in real life...well neither does the real world i suppose.....but NO!