We got the key art for Jianzhu, Hei-Ran and Tagaka weeks ago, here is the key art for the other 4 Kyoshi era characters: Kelsang, Rangi, Yun and Young Kyoshi.
In terms of in-game we assume Jianzhu, Hei-Ran, Tagaka, Kelsang and Yun will be available in upcoming summon banners.