Found these images of the coming Nerf Super Soaker Freezefire 2.0 on this UK webpage.
A remodel of the 2014 Nerf Super Soaker Freezefire, this, too, appears to be a pump-action water blaster whose primary difference from other pump-action water blasters is a larger cap and reservoir opening, allowing one to insert ice cubes more easily into the reservoir. I’ll admit, while functional, ice does reduce the amount of liquid water available and I have not found icy water to be that fun to actually use in a water fight. Perhaps “fun” for pranks, the whole “ice” thing doesn’t seem to be well tolerated for long.
Contrary to my initial hypothesis, this blaster does NOT appear to launch water-propelled darts. Rather, it appears to be a combination blaster that can shoot darts OR water, reminding me of the Nerf: Switchshots series from ~2000. I am unclear if there is a selector switch or not.