Some achievement or Guild level should reward a Personal or Guild Dimension with a Rift Tear where you can pop all kinds of rift lures as if the zone always matches the lure requirements. I don't believe it would be a great deal of work given we already had instanced NMR tears.

Could be used as a reward for new Guild level, new PA tiers, or for completing Achievements in conquering the final undiscovered zone in Prophecy of Ahnket. Even as a lock box reward would be nice!