The rumored spec sheet for this "new" Nintendo concept is nothing to sneeze at. IGN Was saying that if Nintendo did go through with the console that even if they were unable to get it out until later part of 2015 that the internals would still be consider newer gen and not outdated. Look at what Sony flaunted over Xbox with Flops generated, Nintendo would produce a considerably better number if this was all to hold true. My take: not going to happen.
On a side note, if this did happen, how would Sony and MS respond? Do fan boys go into panic mode? Could Sony and MS take being perceived as a second and third place power machines? Perception seems very important to the big dogs.