So it has recently come to my attention that Nintendo has yet again changed some of the weapon kits for unreleased weapons. This change has happened with the applied 3.0.0 patch, so I'll list the new kits, but remember as before these could change although I'm doubtful now (in fact I believe these are some of the weapons for next month):
Carbon Roller Deco: Burst Bombs/Autobomb Launcher (previously Sprinkler/Inkjet)
This is a pretty amazing change for the Carbon, we all know they utterly destroyed this weapon so now they've decided to fix it up by restoring the Burst Bomb combos/chip damage/mobility stuff you could do in the original. It seems like the devs went with this special to prevent it having a really good set like the first game where it was always a relevant threat and annoying sharker. For those of you who want a chicken spam weapon, you may be in luck now.
Custom Dualie Squelchers: Splat Bombs/Ink Storm (previously Splat Bombs/Sting Ray and even earlier Splat Bombs/Ink Armour)
Not quite the kit it was slated for at launch, but I think many people here can agree this is a much better set than the Sting Ray equivalent which would have made it a worse Custom Jet. This could be a better kit for the DS than the Tri-Slosher as it has range to act on any players in the Ink Storm without having to get dangerously close. Interesting change, but nothing that will set the world on fire.
Tenta Sorella Brella: Splash Wall/Curling Bomb Launcher (previously Splash Wall/Ink Armour)
This is the one directly worse change in my opinion, Ink Armour would have been a much better fit on a weapon that is rather slow at painting and moving, so having a little extra time to land the shots for a kill would have been appreciated. The Splash Wall is still a good idea on it, buys the user time to deal damage and open their brella to fire it as a path or just to protect teammates jumping in. An interesting kit, but the special now won't have good synergy with the main weapon anymore.
The changes are listed here as well now:
http://leanny.github.io/splat2/en_files.html