Israel is already saying 4 shots (and more) will required [0] to participate in that society. Australia, New Zealand, and Canada are quasi-police states [1] and will probably mandate vaccination+boosters soon.
The writing on the wall is that the 'booster' is being repackaged as a 'series' of vaccines. The health authorities and pharma are going to modify and approve vaccines for endless mutations. Will these be independently tested? I don't expect so, despite using the novel mRNA platform. The end game is to treat Covid vaccines like annual (or semi-annual) flu vaccines. Moderna is already packaging both together [2]. Except flu vaccine is not mandated (yet). There is a LOT of money to be made in mandatory vaccine mandates. Think how easy it would be to grow rich if everyone had to use your products, you had no competition, and the government indemnified you against any responsibility for harm. It's hard to see how this stops. The pandemic is a gift for technocratic-authoritarians everywhere.
Here's a prediction. In a few years, if the people don't stand up against this, the pandemic will not be 'over' politically. Nominally 'free' Western governments will have become de facto CCP-style management firms. We will be required to comply with ongoing health directives from the central authorities for vaccination to prevent further restrictions. Our compliance will be monitored via digital passes (or onerous paper-work for the poor). Our employment and freedom of movement will depend on our compliance. Those who disagree and are foolish enough to say something will find themselves censored (for health disinformation) and fined (or imprisoned [3]). Traveling to see grandma without having gotten the latest booster will risk quarantine.
So, if you're pro-mandates, I invite you to come back in a couple of years and ridicule me and this warning if it's wrong (if it hasn't been scrubbed from the internet). I hope you're right! I wonder what you'll say if you're wrong? Maybe post your predictions for posterity.
[0] https://www.timesofisrael.com/virus-czar-calls-to-begin-read... [1] https://www.nytimes.com/2021/08/31/world/australia/new-zeala..., https://www.theguardian.com/australia-news/2021/jun/01/austr... [2] https://www.reuters.com/business/healthcare-pharmaceuticals/...
[3] https://www.theguardian.com/australia-news/2021/jun/01/austr...