We already have it here in Dominica, the provisions here going back more than two months were draconian compared to the UK. We are projected to be a virus free country this month, only 16 cases, no deaths, all recovered save for 2 mild cases.
As it happens I am in the government quarantine here, get out on Friday, after I flew my plane to Barbados, refuelled and flew back - just wanted to do an engine health precautionay flight (30 minutes solo out over the sea) after it not having been flow for overva month, but they said no - an international flight no problem - then 14 days in a hotel suite (no visitors and tourists so they are empty). The change of location was welcome after over six weeks at home only briefly leaving three times.
No question though it will kill airtravel and tourism - IF there was a flight to the UK a one week stay in the UK would take five weeks - so hell, not doing that!