Thinking as an engineer, the drug progress will probably be incremental. There are moments of breakthroughs – inventing electricity, new vaccine, but in other cases progress is incremental. People usually underestimate that: say, electric vehicles come up with new things evry 5 years improving by 10%, while old fashioned cars do not have new inventions but continue improving with small things by 2% every year. Same progress overall.
same, there were no “miracle drugs” so far, as with most viruses. Maybe especially because COVID attacks multiple systems, etc. So, look for incremental improvements in combining multiple drugs, some expensive, some cheap (there are 2 approved, and several controversial, plus vitamins), and ways oxygen and steroids are used, and mortality will probably continue slowly going down from a combination of those.