Let me understand, does that mean that quarantine on return to the island is reduced to seven days? It is not explained precisely whether the reduced period has already been introduced and due to be reviewed at the end of August; or if it is at the end of August that it may be introduced. It would be a game changer, because one week is much more manageable than two. The problem with leaving the island for any extended period of time is that one cannot know for sure what the policy will be on return. The government should offer a guarantee to those who need to stay away for a while for a justifiable reason, that on return the regime will not be stricter than at the point of departure. That would provide peace of mind that one doesn't end being locked out of the isle later on.
My guess is that it will go ahead. People will grow fed up of all the social distancing. Even without a vaccine, fatality from the virus is being cut to a small fraction of what it is now. A new drug just discovered, SNG001 it's name, has been shown to reduce Covid-19's fatality rate to 1/5. Read it by yourself here: https://www.theguardian.com/world/2020/jul/24/major-breakthrough-in-covid-19-drug-makes-uk-professors-millionaires As public fear from the virus recedes, government policy will be adjusted accordingly. Everything that the government has done so far is so crudely political... I mean the UK government. As concerns the IOM government; they are dunces. It is difficult to work out the motivations of a dunce because he doesn't know by himself what is doing.