Well, obviously "SQUAD" must be indicating this isn't the going to be ONE skin and that its probably going to be a skin line!
(OS ideas for every yordle (Not Amumu though))
:No. Keep Crying, You Aren't Invited! >:l
:Keep Corki's Personality, update his helicopter/weaponry to OT (Omega Teemo) wise along with his own look with maybe a mask that allows his amazing mustache to hang out.
:Personality Stays, Add more badass clothing, give spear a blacker color with sharper points and make a radioactive type of Chompers
:Change his ranting sounds to more aggressive sounding rantings, give him some OT based clothing with a mask that Gnar wears and disappears in the change to Mega Gnar showing a scarier war-beaten face. Change Orange & Purple/Blue to Orange&Black or Orange&Red (Maybe keep the Moobeat Beard Joke for Mega)
:Change his behavior to more of loving his machines in a murderous way-based reactions, turn turrets into red and black, give him a headband with the Squad's mask icon, OT Clothing.
: Ninjas in an apocalypse? Nah. OT color-based clothing. Maybe a knife/kunai replacement for his shuriken.
Pix! Kill Them! Lulu now has a more demented shaco based personality and Pix has turned completely red or could turn into a floating skull while Lulu has OT's colored clothing and turns enemies into more terrifying shadow animals.
Who Remembers Me? Lets be honest, this should be at least legendary for the mistreated girl, take Noxus Poppy's looks, make Poppy start talking as if she no longer cares for sides with a sad depressed side that won't stop mentioning her father's death and replace her hammer with something sharper or more dangerous. Tada! OS Poppy! (AND KEEP THE NO JOKES)
: Rumble now wears black clothing, has a mech that is completely filled with spikes all over EVERYTHING and looks even crappier than the other one. Tristana couldn't ignore how helpful he would be in an apocalypse!
: "We ain't all making it out of here."
: Matches Teemo's clothing but acts like Teemo as a joke although she stays completely sane and worries about his darker personality becoming a bigger problem for her own safety.
"I lost my legs in the Bandle City War...I lived, there were others that lost their lives while I got off lucky.They...they came out of nowhere! I CANT SLEEP! THEY YELL AT ME! I DIDNT MEAN TO KILL THEM I JUST WANTED TO SEE THE BEAUTIFUL EXPLOSIONS, THE BOMBS ARE MY ONLY FRIENDS ANYMORE! I CAN ONLY TRUST THEM! GET AWAY FROM ME!"