SARS was a very big deal in China and the Chinese government allocated a lot of resources to research. As far as points one and two, that means no real improvement, as it was already in the diminishing return phase.
Because of this I don't actually see why it would be any faster. SARS wasn't the first virus where finding a reservoir was tried, far from it, and the limiting factor in the search for the source is still the same. Because of this I don't expect it should be much easier this time than last time.