Don't hang all your hope on a vaccine... they don't have that great of a track record. Better than no vaccine... but they don't stop everyone from getting whatever the vaccine is for. This years Flu vaccine is apparently only showing a 45 % "overall" effective rate according to cdc (Only 37% against H1N1 strains) That's better than 0%... but certainly not the Holy Grail.
Going forward, treatments for corona are still going to be more important than a vaccine. Because at 40-50% effective rate, a vaccine is still going to be a hell of a lot less effective than everyone staying in their house for 3 months. And we see how well that's going.