The intent of Neeko’s midscope is to help her achieve her undelivered fantasy as one of the premier tricksters in League. Neeko's passive as-is has been pretty weak and isn’t used by many players. Her W was a bit more tricky, but still not even that tricky, and that’s the whole point of it!
We're opening up Neeko's passive to be able to turn into anything so that Neeko can truly be a unique trickster. She will be able to turn into anything with a health bar, from a minion, to a monster, to an Illaoi tentacle. She will have quite a few unusual interactions with other champions based on what she's disguised as.
Her W should now be a true trickster's tool as she’ll have complete control over it. You can fire and forget the clone like it was in the past, but also finely control its position (or emotes) to scout or deceive your opponents. We expect there to be a lot more mastery in both her passive and W now that she has more options in how to use them.
The last major change, R, is a substantial change to the reliability of the spell. Traditionally, Neeko’s R was very, very hard to hit against an enemy actively playing around you. Spells in League of Legends should feel like they work for the character casting them, and Neeko's ultimate in many ways felt like it was working more for her enemies than her. This new, increased reliability did make us have to shift a bit of power out of the ult (out of cooldown and damage), but she’ll hit the spell way more often so we needed to curb it a bit.
We also have some adjustments for the jungle to open up Neeko to a role she feels fairly natural in. There is no intent to make the jungle Neeko's primary role, but for a character whose theme and gameplay feel so suited it seemed a shame to not let her try to play there and see how players feel about it.
Like with all midscopes, we’ll be keeping a close eye on Neeko to make sure the changes all land well on live servers and adjust where needed. And one more quick note, given the unique nature of Neeko’s new passive, we expect that there may be a few bugs that pop up when she ships and we’ll iron them out over future patches.