I literally saw the opposite headline about Pzifer versus a strain in India today The actual article said "modest antibody evading capabilities“ I hate that the internet has become this way
This generally means that a pseudovirus built with the mutated spike escapes some monoclonal antibodies and has reduced neutralization titers against convalescent sera, which is fairly normal and doesn't add up to an escape mutation.
When it mutates enough to form an actual escape mutation that will probably come at a cost to the virus for transmissibility/virulence/viral load because it will need to escape at ~20 different epitopes. And still cross reactive T-cells will likely identify the new strain enough and active your immune system to contain it so that it acts more like a common cold than COVID-19.
Booster shots are probably still not a bad idea though, the more it gets boxed in by our immune systems, the more it'll have to make those costly evolutionary choices and become less virulent.