Once again riot comes out with another skin for a champ that has been in the game shorter then Ornn. I know you said your working on it but how come Yummi get another skin already. How does skin priority work because Ezreal, Lux, and Annie have over like 10 skins already, when certain champs only have 2 skins. Mecha woulda been a great chance to see a cool Ornn skin. Just some thoughts
They choose the themes and plan when they release. Yuumi is a heartseeker, those are related to Valentine's day, so they come out now. Ornn, from the previews, was an Elderwood, which has actually been worked on since last summer. I suspect it was meant to release with last years Elderwood skins but got delayed, so they will have it out sometime this year.
Those others are both older and popular champs, of course they are going to get more than anyone (especially to give them more modern skins, when a majority of theirs are actually pretty old)
