There's crystal structures in many of SoA's outdoor areas that have been there since launch. These now take you to the 2nd maps. In order to use the ports, you need to have completed the WKR in that zone and acquired the Aged Naakual Crest.

Crystals are at:

Ceizak - G-10 - Sih Gates
Marjami - F-11 - Woh Gates
Yorcia - I-10 - Cirdas Caverns
Foret - H-11 - Dho Gates
Morimar - H-5 - Moh Gates

On the opposite side of the 2nd map is also another crystal structure that will warp you directly into Ra'kaznar Inner Court. Specifically the one in Cirdas is useful for getting to the Ra'kaznar Turris for some of the final missions. Others may be useful someday if Ra'kaznar gets some more uses added to it.