When will Saber Alter next have a rate up?

Just missed knights of the round table summon rate up for salter. Might mean she won't have another for a while.

She will be on rate-up when Shinjuku releases, alongside Emiya Alter, which will probably be around February. If you still can't pull her, JP gave out an SR ticket during the 10 and 15 million Download campaigns, so you can pick her with one of them once we get them/