Given the right know how, yes it should be possible, but not solely within ae.
there is nothing in ae that could do this kind of automation, so there would need to be a marcro-like script that would get triggered when either the files (text & video) are updated or the directories for those files get updated.
the script would then opperate ae, importing the new media, getting them into comps and setting up the render.
that’s way beyond me (not a programming guy)… you might take a look at dan ebbert’s motionscript.com, in his brief ‘about me’ he mentions automation workflow and provides contact information.
one thing you haven’t mentioned, but will probably need, is a conversion of the ae rendred file to the destination file… i doubt you’ll want a quicktime file, and i think you’ll have problems getting ae to output an mxf, gxf or other common broadcast hardware friendly file type. so you’ll probably have another compression utility in the mix, and you may want that running on another machine depending on how much rendering ae is doing — essentially you probably don’t want compressing going on if ae is rendering, so if ae is constantly rendering, you may want your compressing to run on another machine.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW