Should I spend

Gonna be real i had enough for c1r1 mav and Citlali but ended up losing every 5050 and only have c1 Mav with no weapon. I do want Citlali and by the time the banner ends i will be about 40 pulls away to get her. How soon would you say she would rerun given she's a cryo character and would it be within the same patch? If not do I just bite the bullet and swipe instead of waiting?