User blog comment:AdmiralPedro1stFleet/Goodbye Indoctrination and Hello Beings of Light/@comment-70.232.58.82-20120624030647

Admiralpedro, you are correct, sir. The Catalyst is one of these Beings of Light, and they created the Reapers to preserve organic life. It doesn't make complete sense-- why don't they just fight the fully machine race instead of reaping?-- but it mostly makes sense. (Also there is the question of why the Catalyst would need Sovereign to watch or the Keepers to send the signal, but they could come up with something for that, I'd reckon.).

Two more things. That the Klencory information has been around since ME1 does not mean that BW has had it planned all along. It was either throwaway flavor-text sort or perhaps a plot thread that was never fully fleshed out. When BW needed an ending for ME3 they went back through the old stuff looking for lore they could use, and they found the BOL stuff or remembered it.

Lastly, unless BW is so stupid that they would base the ending of the ME trilogy on nothing more than a couple sentences from the planet-scanning screen, I'd be willing to wager that the Klencory mission from ME3 either was incomplete so was not included or has been cut from the game and is sitting in DLC form on BW hard drives just waiting for the fans to stop being pissed, whence BW will try to sell us an explanation of the ending. That there will be no new gameplay in the EC makes me think this is the case.