I can't say I see a need for a reboot/series from this. The film stands on its own, even dated it's appropriately disturbing. Trying to find some deeper character development or relationships through a longer series would ruin the whole point. I know it's BBC, but if Hollywood had its way the ending would have been happier to imply some hope. Might as well remake The Road but have them find some settlement where people are doing okay and are happy.

Maybe they should wait a few years until they have more life experience first.

And Netflix should get the creators of Zero Day to remake The Day After.