The New Champion's Release Date

I don't know if this is too much to ask or if I shouldn't bother, given that it may be sooner than I think or too far in the distance. However, I decided that it was better to try than not. Could we get an ETA for the new champ's patch, or even a vague timeframe (e.g. within the next 5 patches, by the end of Summer, etc.)? If it's something that can't be revealed or you just don't know yet, I'm completely fine with that answer, too!