Finally there are some mileage bargains from Luxembourg with Luxair:
As usually booking period is from 02.11.2020 until 31.12.2020
Travel period is from 01.01.2021 until 31.03.2021
The system does not yet show correctly, so we would need to wait a bit.
The tax for VCE (Venice) is around 30€.
For the rest Warsaw -Tokio seems to be a highlight for 70 000 miles, but you need to travel during december 2020.