I would like the following, that would be cheap:
- Confirmed upgrades (possible to use for others), instead of courtesy - maybe just a few like LH
- Possibility to take earlier flight on all SAS Plus fares (or xx vouchers for same). SN has it on all B.light fares and up. In reality you use it rarely, but when you do its fantastic to be home earlier than planned.
I think the idea of + 20 % for Gold and + 30 % for EBD and 1 free suitcase on light fares for Golds and 2 for Diamonds (or 1 each) makes sense.