Ice types are kinda dangerous as is. The only progress I think they would receive is whatever they need to stay current. A new move with the same 10% chance of freezing, maybe(i repeat, MAYBE) a new pokemon with Snow Warning. overall, it kinda depends what dual attribute ice-types we might see and what signature moves could come along. A pokemon that has a higher chance of freezing would have either horrible stats or a bad move pool.
Game Freak might be over estimating the power of freeze status, which is why ice types get bad coverage, but...hmm...
Serving up shade since it was relevant. Plus, TEAM CHESPIN
"Speculating about it isn't going to give us any answers" -Virizion, PMD Magnagate
Shaddup, Virizion. You don't know nuthin'.