OK picture looking clearer - twice as infectious (minimum) with a doubling time of around 3 days in the UK (as opposed to 11 with Delta)
Now this doubling time may be due to a number of super-spreader events so it could be a lot lower.
Covid passports are a waste of time. One person infects over half the attendees (Norway party, Steps concert etc.)
At least a 1/3 as severe (worst case could be a lot better as initial hospitalisations in SA look like they were immune compromised) in terms of hospitalisation and 1/9 as severe in terms of ICU and deaths - very little lower respitory tract infections.