News flasks and quest reward

Ascendancy will have new types of flask.
Since some quests reward offers flasks as reward, why not having the new types of flasks including in these reward ? It would allow build using this flask to gain opportunity to have one, without being too dependant of luck.

It will be a choice between the actual rewards and the new one, so it will not create too many new flasks, because people will often prefer old one (not everyone needs a Stibnite or an Aquamarine flask).

I also wonder if, with all the news flask and mod, it could be useful again to have chemist's strongbox ?