Re: DC's New 52: Reviews and Discussion (Spoilers welcolme and likely)
^ I picked up on that as well...it very much was implied that it was an established Superman that traveled back with the Legion foundations in that two parter I thought.
Also interesting to find out that it was Luthor who was Clark's source on the Glenmorgan expose.
Chief of Operations
Ignoring the The Last Stand since 2011.