First of all: What are the new limited cards? I don't have SR Gacha tickets so i don't even know the full list...
So far i know about Azusa Niigaki, Marina Mita and Shigen Houtou. Is that all? And is Shigen Houtou a single limited SR from SR Gacha or there are some more?

- - - Updated - - -

Well, it seems that chances are pretty good this itme: like 17 R Gacha tickets and a few Reveals gave me both Azusa and Marina, and Azusa came at like 3rd ticket, and showed up a few times again after that. And i won't, probably, regret not getting Shingen Houtou, since i don't like her images too much and her max SED is not the top-5 anyway...