So he has been returned to how Greenwood originally used him apparently, as a crotchety old sage who would occasionally give out advice about what was going on.Imban said:Elminster's been rendered incapable of using magic on pain of being possessed by spirits instantly, and is thus just a useless old man. So... yes.
The real difficulty with Elminster wss his presentation in the novels as a deux ex machinae, both by Greenwood and others. See for example Spellfire.