New Project: Skins
This is a speculation thread based on this teaser. I'm including my personal predictions for the new skins, but I could be wrong.
So, in the teaser, it shows five weapons, as well as Project: Yasuo. Also, a bit harder to notice, are five text files, corresponding to Yasuo and four of the weapons.
My Predictions: "ALPHA" Blade: This one goes with Master Yi. It mentions, on the text boxes, that it is lightweight and designed for multi-target combat - along with the name and design of the blade, this made me think of Master Yi's Q, Alpha Strike. Pulse Sabre: This, I suspect, is Fiora's weapon. The text boxes mention a focus on precision and the ability to repel attacks. This fits Fiora perfectly, and her weapon is in fact a sabre. Also, the "Memory Trace" connected to this one references a blade "dancing," most likely in reference to her old ultimate, Blade Waltz. Energy Shield: This is an easy one. It's Leona. It mentions resistance to burst damage and stunning opponents, and the memory trace makes several references to light. Dual Strikers: I believe this one goes with Zed. The shape is very similar to the weapons he uses, and the memory trace references shadows. Lightcasters: These are Lucian's weapons. He fires bolts of light from his guns, and these are basically a sci-fi version.
It would be interesting to see if anyone has any other predictions, or guesses at who else may receive a Project: skin in the future.