Remarks by Pfizer's vice president of its vaccine team, Ralf Reinert
I reckon he's talking about the efficacy here so that is a positive comment but he provides a caveat in saying that they still need to do more experiments and not speculate about anything at the moment.
As for the timeline, Reinert says that it could take up to 2-3 weeks to know if the vaccine will be effective against the omicron variant.