Welp I was hilariously wrong with my predictions! That Splash Wall Splat Roller is infact part of Sheldon's Picks, I only got two main weapons correct being Aerospray and H-3 (their kits remain to be seen), and I was wrong to think they'd include every weapon type since they lack a Slosher which is very odd and disappointing. Atleast I was kinda close on weapon types, I mean we did a get a Blaster, just not a Rapid, we got Charger, just not an E-Liter, a Roller that's not a Carbon, a Splatling that's not a Hydra, and the N'Zap and Dual Squelcher have always been very similar weapons.
Ahwells, I'm happy we finally know what the weapons are! I'm most excited for the N'Zap, but I can't think of what kit they could give it that wouldn't infringe on other weapons. For instance giving it a Bubbler would be stepping into the Splattershot Jr., giving it a Kraken would make it a better or worse version of the Neo Sploosh and L-3D, and Inkzooka the Neo Splash, Tentatek, and Forge Pro already have well covered. I would of said Bomb Rush but then I remembered the Forge just got that last update, so with the Splash that's two Suction Bomb Rushes already.
Oh and I'm assuming they want to make this kit really good since like the Dual Squelcher the N'Zap is too fair of a weapon if that makes sense, and they buffed it last update as if they agree, so I feel like it'd have to get one of the aforementioned specials.