Sky Ruler temple, you mean?
Im confused.
Sky Haven Temple is to Skyrim as Cloud Ruler Temple is to Oblivion.
The former is the last refuge of the Blades located in the province of Skyrim, home to Alduin's Wall which prophesizes the coming of dragons to Tamriel following civil war in Skyrim and the opening of the Oblivion gates, as well as the central plot points that form the stories of every other Elder Scrolls game:
The breaking of the Staff of Chaos in Arena, the resurrection of the Numidium in Daggerfall, the Nerevarine in Morrowind, the opening of the Oblivion gates in Oblivion, and civil war among the citizens of Skyrim.
Apparently, it all comes down to the coming of dragons. The Elder Scrolls and Alduin's Wall, unless I'm much mistaken, both prophesized these events.