User blog comment:Tanooki1432/What if.../@comment-2250460-20110301023931

What would happen, nothing. They would probably go over a good 50 years without discovering the mass relay in pluto, and without shepard the reapers would return, (maybe by a different way than saren and geth because humanity had an effect on there chioce) and destroy all known spieces, and when and if humanity discover the relay the reapers woul be long gone.