I'd say there's a greater likelihood that the season will not resume at all, vs starting back up in a month.
I think it all depends on when they actually are cleared to resume. I think the least problematic approach would be to just start playing the games that were supposed to fall on the day they resumed anyway. Something like the following:
1. If it's before the season ends, just play whatever games were scheduled on those days to begin with and resume the normal schedule from then on.
2. If it's during the one week period between when the playoffs were scheduled to start and seven days after that point, maybe try to figure out what's most feasible out of:
a) Rescheduling games to salvage all (up to) seven games of the first round series.
b) Truncating the first round series to best of 5s or 3s depending on how much time is lost.
3. If it's after the first round would've ended, just repeat my solution for that depending on the current round (be it conference semis or conference finals but not necessarily the NBA Finals as I think that needs to be a full series). If any rounds have to be canceled, then whatever teams would've been the lower-seeded teams in that round based on traditional probability are disqualified from which ever round the playoffs start with.
Basically, if the playoffs resume with conference semis, then it's just seeds #1-4 in each conference qualifying for the playoffs. If it's conference finals, then just #1 and 2 from each conference. If it's the NBA Finals, then only the top seed from each conference.
If the season ends, will the playoffs still be on? The amount of money the NBA would lose would cripple them next year. And if that is the case, does that mean that Pop's record of 20 years in a row getting to the playoffs stays intact?
An argument could be made for it but it'd have to be heavily asterisked since they'd have to pick up at least four games on the #8 seed in less than 20 games plus there are three other teams ahead of them aside from #8.