I think there are things I will have to keep up for 12 months. For example, as a teacher who will be in not-possible-to-socially-distance school sometime quite soon I am not expecting to see my very elderly parents in 2020, and it may be longer. I am not expecting to be able to fly anywhere without quarantine over the same period, nor see DS in a live concert or gig of any size (he's a music student)
Would I comply with lockdown in its full current form for 12 months? I genuinely don't think that will be necessary, and for the children I teach rather than myself I would want to come out of lockdown. But I don't have a particular problem complying with lockdown conditions as they are.