Postponing the season isn't an option. We are a long way behind Italy and they are still at their peak of infections, realistically the postponement would be for two months and even if the Euros are postponed that would still take us into July when the new season starts. Plus we now have Arteta infected, which almost certainly means at least some of his players are infected. Best case scenario is the season is finished behind closed doors, more likely (and really, really bad for Liverpool) is it will be abandoned.
Following the model implemented in Germany seems to be the most sensible option here imo. No relegation this year but promotions occur. More games next season only, with more teams to be relegated at the end of next season.
At this point, it's a much wider issue than Liverpool winning the league. Give them the league now, I don't care. What's at stake is much, much bigger.