Any time you have a player as good as McDavid you always have a shot, but I think playoffs for next year are gonna be tough for this group seeing how LA and San Jose are probably not dropping out and Vegas is likely very attractive to a lot of players also.
I think we have to look a bit more long term, we need Puljujarvi, Yamamoto, Nurse, Bouchard to develop more.
That said I think Chia is kinda screwed because while the Oilers can afford to be patient some what, Chia is even by his own supporter's admission pretty much a lock to be fired if they don't get into the playoffs next year.