There is really no need to rest the show between a return of the live format, the marketing strategy is so simple and clear to draw people back in. 'The original social experiment is back', 'the greatest reality show returns' blah blah blah. Fill those adverts with old footage from previous seasons, have the nostalgic theme tune playing. The hype from fans and general audience would be the biggest in years just by the news of the revival of old school Big Brother. Seven even has a scape-goat with covid to "blame" for the seasons being pre-recorded.
The idea that the young demographic wouldn't care about the old format is rubbish. that 18-25 year old demographic grew up with the channel nine series and that's their version of nostalgic, they remember those seasons well. And the notion that the old format wouldn't work nowadays, yet Big Brother is being revived successfully in so many countries the past few years (The Netherlands, UK, Portugal, Italy, etc...), make it a shorter run like the UK and it would be rating more than double of what this travesty is bringing in this year.