Why limit yourself to SEA? There are other great dive destinations that are open. I went to Cocos in last December, Socorro in January, Maldives in March, back to Socorro in May. I'm now preparing for Malpelo in July, 5 weeks away.
Also since Indonesia is still closed, I reschedule my August trip to Sangalaki to next year and replace this year August trip for a trip to Isla Guadalupe to see Great White Shark, which is a rescheduled trip from last July. Then I will be back to Cocos in September, which is a rescheduled trip from last September and to Tiger Beach (to see Tiger Sharks & Great Hammerheads) in October, which is a rescheduled trip from last October.
Dan - you seem to love pelagics. Any places with good macro like Lembeh?