Thanks everyone for the insights and suggestions!!
I will now have the 2-weeks of XMas break to come up with something.
Two notes:
1. Problem set: We might use these
https://cses.fi/problemset/ . We did many in Java. I think doing the same ones in a different form will be educating.
2. Remote-learning: I don't want to open a whole-new can of worms, and this is not the list for this, BUT, remote learning certainly influenced my CS classes as well (to my surprise!). Keep in mind I am talking high school, where in normal-years they will have about half of our time together to work. I would then go around, help people, see where they are, they can ask me questions. 'Lab' kind of thing. We do not do that now (less contact time to start with), and moreover, working-remotely for high-schoolers is remotely-working. So I will need to consider this as well for my planning.
Thanks again, and happy holidays!
Zachi