Yeah I can definitely see it being meta, as well as Anarchy and maybe even riskrunner. My only hope is they don't ruin any other super like they did dawnblade, maybe bottom tree FoH but you're better off using thundercrash anyway so we'll see.
I also wonder what the theme will be, Void was all about healing and debuffing, solar so far is about blowing stuff up and also a bit of healing so I wonder what arc will be about. Maybe conducting and spreading arc to multiple opponents like what riskrunner and dunemarchers do, as well as what stormtrance does.
I hope arc is about movement.
Speed, jumps, blink back for hunter, sliding with lightning or something.
Chain lightning spreading to targets.
Maybe even new buffs. Ability regen buffs. Instead of damage/healing, you get buffs for stability/handling/etc.
Im excited to see I love void and solar 3.0