There's no suggestion of games being played for close to two months, if not longer. By this time testing will be more readily available and we'll possibly, if not likely already have seen the lockdown restrictions lifted. Leagues are already looking at various possibly ways to finish the season up to and including ideas of players isolating away from families for a period of weeks and having games played at limited venues on the same day to keep the total number of non playing staff required to a minimum.
Regarding the more specific point on finishing this season. Testing will have to be carried out until there is a vaccine in place, which is likely to be over a year away. Are we cancelling next season too?