The only reference to teleportation after the original SAO is a teleport gate in the Mother's Rosario arc of the light novels, but the only time teleport crystals are mentioned are referring to the original Aincrad. That's what I found after doing a search of "teleport" and "crystals" in Vol. 3,4 (Fairy Dance) and Vol 7 (Mother's Rosario).

Just food for thought, this is the quote that flat-out says that teleport crystals don't exist (found in the Vol.3 Fairy Dance arc):


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[quote]
In ALO, because there are wings to fly, other means of instantaneous movement do not exist. Therefore, journeying to the center of the world, the world tree, and the capital of ALfheim, «Aarun» is just like a journey in the real world.[/quote]
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Normally I would have kept quiet about the inconsistencies in the RP, but when our characters are going to be traveling off together, it's going to be madly confusing when some characters take out teleport crystals and some go off flying.

Anyways, time to get hammering out an IC post.