Hoo boy! The Splatfest demo is up, and it brings info with it which I shall dump in this thread!
Respawn Punisher is as shown. I'm not sure what to make of that description.
The icon with the spawn point middle-right is Opening Gambit, and the one next to it resembling the match-end tape is Last-Ditch Effort. They sound identical. Tenacity, Comeback, and Ninja Squid seem the same. The icon next to Thermal Ink is Haunt, with a new icon. Next to Respawn Punisher is Ability Doubler, which doubles the effect of the other abilities on that gear. Next is Stealth Jump, which others pointed out only works at a distance now. The last two are Object Shredder and Drop Roller, revealed today.
Other tidbits:
Bomb Defense Up also protects against special weapons! Everything except main weapons, it seems.
Coldblooded is stackable!
Curling Bombs let you hold R, essentially pulling the pin, to change how long they last before detonating.
Sting Ray has an echolocator effect when you're not firing. That might be known already, worth mentioning.
Ink Armor affects the entire team regardless of where they are. Innnnnnnnnnteresting!