S20 2020 has been confirmed to be postponed with the next episode being slated for 2021.
A post from the official Facebook page confirms it.
"Dear S2O Fans, we have been coordinating non-stop with local authorities and deeply regret to announce that due to factors beyond our control, Pepsi presents S2O Songkran Music Festival planned for 11-13 April 2020 can no longer take place in a good way that you deserve and S2O is now postponed to 13-15 April 2021, location to be announced. We are working now with artists and all involved parties for this transition. These past weeks we have been trying our best to find solutions to make our event possible; however, the situation has come to a point that is out of our hands. We are all broken-hearted by this and thank everyone for their support and understanding. Ticket refunds will be provided and all ticket buyers will receive refund instructions by email. More details will be announced shortly, we thank you in advance for your patience while we sort out the details"