Yeah having the Splattershot and Splat Bomb's cover ground would definitely be a plus.
What does everyone think about the Octolings? I feel like they could be in the base game, and would have make sense as echos despite being recently more popular. However, I feel like we're running low on time to show them off, and I also have a gut feeling like we won't be seeing them. The Octo Expansion was released this year after all.
I don't know how likely echoes are as DLC which is where I would most likely see them showing up now. So perhaps they could end up being like Isabelle? Somewhat of a semi clone (semi echo)?Splatoon is one of Nintendo's biggest franchises at the moment, so it could definitely be plausible for Octoling DLC in Smash.
Plus, this would allow Octolings to represent Splatoon 2 and possibly give them weapon categories that the Inklings are currently missing. Chargers, Splatlings and Dualies could be worked into their kit, perhaps even switching their Splat Bombs to one of the other subs, the Splat roller to a Dynamo, etc.