Yes, BUT only in the present (of the show) will there be both sets of knowledge. In the past, Akoram did not "crash" into the Celestial Temple.I doubt that. Kira clearly proved that they remembered both timelines, which admittedly is weird to the extreme but Q did the same when he changed radically Picard's future yet left everything else pretty much as it was before. So it's a Star Trek thing... when it's about timelines, anything goes.

