When you opened your question to ustaz with wishing him good health so we can still benefit ilm from him, but he suddenly drop the news that something else might just happen that could obstruct his classes and dakwah ):

There's already too little of sunnah asatizah in sg, and what more with the challenges the current asatizah are facing that could hinder their sharing of knowledge to us.

May Allah bless the current asatizah with goodness and may He make ease all their affairs on earth.. And may Allah bless our country with more asatizah who strive to uphold and spread the truth..