I would love to see a chemist, but I see two problems with it. 1) It could end up being a secondary to Musketeer, i.e. scholar to Arcanist. 2) There is already and alchemist DoH; it might be difficult or redundant to make something similar as DoW or DoM--and which one would it fall under for that matter? Magic, probably, since it would have to produce mass-quantities of potions without buying/gathering ingredients.

If SE could make it work, I could see low lvl single-targeting of potion throwing abilities. Then later lvls having AoE potion throwing abilities, even grenades, perhaps. Also, debilitating potions/poisons, too. Maybe make it a requirement that they have at least one potion in their inventory, then have a replicate ability for non-tradeable potions to be used in combat.