Anyone know how long it took to make the Warwick Teaser?

Not going to lie, I think it was pretty amazing despite the asymmetric redesign of Warwick. I'm not a huge of asymmetric designs. There seems to be alot of life in the teaser to a surprisingly level. I expected a comic like with Taric but Warwick has clearly been given alot more love with his teaser along with Zuan in general. We certainly got better look at the place compared to Ekko's reveal which was just a single hallway.

It really feels like Riot had plenty of time to make this and I was just curios of how long it took.