Vlad Morbius asked on the Turbine Forums:

Will the portals in Sanamar remain (AB/ Shoushi)when ToD goes live? Will the portals to Sanamar still remain in Shoushi, also will there be one added to the subway?

To which Scenario replied:

Some will, some won't. In particular, the portals to Hebian-to and Ayan Baqur were hand placed by us for your convenience. Those two will be going away in Live.

So don't get too comfy with that Ayan portal!