*watches the cutsene*sonofliber said:nope, look:
http://www.youtube.com/watch?v=aGL9b0i_tpI
it will still be reaper tech, and the galaxy will be enslave by a different race or wipe out by another alien race with no possible way of uniting to fight it since there isnt any MR (or perhaps of the time lost regaining the knoledge of the MR gave the species less time to develop better technologies.
-Beam shoots out of citadel
-Citadel blows up
-Beam hits Mass Relay
-Beam transfers to other Mass relays
-Joker in Mass Relay jump attempting to escape the beam
From this we can determine that Joker went into the Mass Relay shortly before the beam hit it as an obvious attmept to escape it.
.
.
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Beyond that there is NO evidence that the galaxy and the other races will eer be enslaved by another race again, it isnt even remotely hinted at.
Also the new rleays MAY be based off of Reaper Tech, but the races of the galaxy don't know 100% how the Mass Relays worked, they have to fill in the missing pieces themselves, they have to make their OWN relays, using their OWN designs, and their OWN methods.
them making the relays for themselves on their own steam is what is important.