Yes, but they are brand new
But based on work that has been ongoing for quite some time; they are not new from scratch.
and it would be foolish to place absolutely everything in them at this stage.
What does this even mean?
Not everyone can have them
The vast majority of people will.
and we don't yet know how long the protection lasts for.
There is no evidence to suggest the protection will be anything other than long lasting.
People who had the original Sars Coronavirus infection still have good immunity 17 years later!
Seasonal Coronaviruses are endemic but we reached equilibrium with them because our immune systems are able to recognise them. If immunity faded rapidly we'd have Coronavirus epidemics every year (or yearly boosters).
Coronaviruses mutate much more slowly than 'flu.
Will people vaccinated in December still be protected by August? That's why I said we'll know more next year.
Yes of course they will.
Uhhh you do realise the whole idea is a booster season on vaccines in Autumn to prepare for the winter season?
I actually don't think we'll need an additional booster (other than the second dose) this year but I wouldn't rule out the possibility of a revised version of the vaccine being given as the 2nd dose in younger people, depending on how the timings work out.
The variants are able to evade
some of the antibodies produced by the 1st generation of vaccines but there is no evidence that the T cell response is compromised. People are still overwhelmingly protected against severe illness. It's just that more people get mild symptoms.
Ultimately the vaccines may not be able to eliminate the viral infection but they will probably downgrade this virus to what is expected to be the same sort of status as the four already commonly circulating Coronaviruses.
The virus will probably still circulate, but with most people having excellent immunity, it won't spread exponentially, people won't become very ill and won't pass it on to many others.
It will probably reach endemic equilibrium and won't be of particular concern. It may be possible to eliminate it completely but at the current stage it is unknown whether this is practicable, affordable or even necessary.