Yeah, it's easy to get excited about new strains but new strains can and do pop up all the time. Check this site out on how many different strains have been sequenced globally -
https://nextstrain.org/ncov/global . Press 'Play' on the left hand side for some great data visualisation :-) Note that this site can only handle 3000 strains at a time.
New strains are of interest but it's what happens clinically that is important here.
The good news is that the mRNA and Adenovirus vaccines have been shown to work well in trials and the preliminary data from vaccinated populations seems to look good. These vaccines can be easily modified to take into account any changes which elude the immunity raised from the current vaccines. Remember, the BioNTech/Pfizer vaccine was designed and made in 2 days...