D&D 5E Making the sorcerer more like a superhero

These are some very inchoate thoughts.

Get rid of verbal, somatic and material components.
Restrict each sorcerer to a much more limited spell selection such as all necromancy or all cold spells.
All sorcerers get the feat Elemental Adept.
Increase spells per day significantly, perhaps doubling.
Sorcerer 'spells' aren't even technically spells but supernatural abilities so they can't be counterspelled.

EDIT: Allow spells to be reflavoured as a different energy type to fit each sorcerer's theme. Examples: Frostball and Cone of Thunder.

I feel like all of those changes at once could be too much, but only the doubling spells really breaks things to me. Maybe counterspells too.

I feel like most sorcerer players self regulate their spell selection.

I would have really liked to see a spell slot-less class for an "easy caster".