Thanks for the reply. Appreciated
The flights are on the 4th December, so I think (if the lockdown does actually end as scheduled) it'd fall after, but because LH has done a lot of rescheduling my layover is about 20 hours. I'm not sure I am inclined to stay airside for that long, and the transit hotel looked pretty expensive for these dates.
On the plus, at least Germany (certainly as someone who doesn't know much about the domestic situation) seems to communicate these things with a fair bit of notice. It at least makes things easier to plan/cancel.