EDIT: Ok, so I Jebaited everyone accidentally. As I've pointed out with the edit on my initial post, it is possible that the statement is talking about fighting game vfx, not Udyr's vfx in fighting games. Due to the timeline of game development, I think this is a much more likely interpretation. Udyr's VGU was an extremely long process, and there was several updates talking about the progress. One important one was this last January where they actually talked about this exact thing:
> "Fighting games have always been a genre where you can express individual mastery over a character and its matchups. When I looked at Udyr's new gameplay, I immediately thought of that individual character skill expression you'd find in a fighting game. His stances have different use casesāBear Stance is great against certain champions in a 1v1 duel, Phoenix Stance is great in an AoE situation, and so on.
I picture an Udyr player knowing when it's the right time to use the optimal stance, and that being the thing that differentiates between a good Udyr player and a great Udyr player. He's an incredibly versatile and flexible championāexactly the type of character I'd want in a fighting game.
But fighting games and League are two different games with two different types of VFX. Where's the happy medium?"
As far as I can tell, this guy still works for League and not Project L. So yeah, although this one guy in particular at Riot really thinks Udyr is a really cool fighting game character, he's not on the team making the game so his word isn't gospel or anything. In addition to that, if Udyr in Project L's development was so far along that they had working VFX to the point where it could be used as a reference for his League VGU, then he would have been far enough along that they could have shown him off during their pre-evo dev diary. So yeah, this is a false alarm, sorry for the confusion. I'll keep the original reply for completion's sake.
To be clear, all that art is for an Udyr skin called Spirit Guard Udyr. Almost all skins are non-canon and aren't used as the design for when they're brought into spinoffs. This is what Udyr will likely look like in Project L:
This is his Legends of Runeterra design, was designed first so might be outdated:
These are his forms in League. Keep in mind that League's visual fidelity is SUBSTANTIALLY lower than Project L's so it will look better in Project L, but these are vfx that are supposedly inspired by his PL VFX: