With DC reviewing big contracts, The move to graphic novels and everything else changing back stage I honestly shouldn't even be speculating.
The batman and detective comics are not going away so if Damian was sidekick i.e. Robin or is made place back to that role then he will appear in one of these comic probably detective comics.
So let not act like if Damian stop shown up it because of that and not were not he robin mean at point their probably no writer interested in character that 14 year old and is made to be written like red hood clone rather his actually characteristic and development.
The move to graphic novels
Which mean.what and actually they still going for a mix of how they do thing now and general graphic novels thought again with manga that lost term as one shot of story with over 900 chapter also fit