Does Pathfinder will inclue rules for Alchemical Item ?
I think it's a good idea to create simples rules for alchemical items, inspired by the codex ones.
example
Flask of element (zone) 1d6 then 1d6 DC25 20 PO
(acid, fire, ...)
Flask of element (one target) 1d8 DC25 20 PO
(acid, fire, ... )
Alchemical boost
+1 Skill / 1 minute / DC 20 / 20 PO
+1 Skill / 1 hour / DC 35 / 50 PO
Alchemical special
Stabilise / 1 use / DC 25 / 25 PO
and so on ...