All Limited SSR Kami return after 1 year WITH the new batch but ONLY THE NEW are Buffed. Best chance to get the SSR you want is ALWAYS during the release. If you do not plan to whale best is to reroll till you get them. Sol *Any form* is still the top healer for some weird unknown reason. Unless NA is changing the stats or abilities (which they haven't so far) she is still a great Kami to get. The only one close to her is X-mas but that is next year since we didn't get the first set of X-mas chara last year (due this year)

Hope this helps.