Btw Scathach is limited in a way that she will not appear in story gacha in the future, but may appear in future events. Also to be noted the same is probably true for Gilgamesh. Tama Caster is obviously already going to be in chapter 4 and I have no idea for Kintoki.
wrote...
Official announcement is
here , confirmation with this line:
†»ã‚¹ã‚«ã‚µãƒã¯ã€ã‚¹ã‚«ã‚µãƒãƒ”ックアップå¬å–šæœŸé–“終了後ã€ã‚¹ãƒˆãƒ¼ãƒªãƒ¼å¬å–šã«ã¯è¿½åŠ ã•ã‚Œã¾ã›ã‚“。
(After the Scathach Pick-up summon period, she will not be added to the story gacha.)
Now sure, it doesn't explicitly say "permanently". However, Gilgamesh was also described in this manner, whereas Tamamo was explicitly announced that she would be added to the story gacha after chapter 4 is released. So, even if she does come back at some point in the future it'll likely be as another special event, like a 'hey suckers, try and draw all these limited servants again like Gil and Okita and Scathach' type event.
The in-game gacha info also contains the phrase 期間é™å®šã‚µãƒ¼ãƒ´ã‚¡ãƒ³ãƒˆã¯ã€ä»Šå¾Œè¡Œã‚れるã‚ャンペーンã«ã¦å†ç™»å ´ã™ã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ which means "Time-limited servants may appear in future campaigns". So again, no guarantee that Scathach specifically will come back, but if she does it'll likely be part of a special event, not added to the story gacha.