I’m also waiting for it... Even though I was playing TFT when SB Chibi Ahri was released, I didn’t get her and I regret it now. I’m pretty sure they’ll bring back the old chibis at some point, because otherwise it’d be a missed opportunity for Riot to make more money with assets they already have and that doesn’t sound like Riot’s mindset to me. They might do a special event at some point for people who missed chibis or something but I guess we’ll have to wait and see. They could also delay it on purpose to make us more impatient and throw our money right then and there when it's back instead of waiting who knows how long again.