Do the Alpha Strike cards (or the PoD Leviathan cards) fit in standard card sleeves? If they do, you could sleeve the cards and then use dry erase markers on the sleeves.
They are 2.5" x 3.5" and fit perfectly in sleeves.
I am under the impression that the card sets will be going to distribution. Each one (which correspond to the omnibus TROs) will have 98 Mech cards (for 196 variants/configs/pilots) and 10 unit cards (i.e. 2nd Sword of Light, Wolf's Dragoons Gamma, etc.) that includes SCAs, skill, and unit info . Succession Wars has one unit for each Great House, plus Wolf's Dragoons Gamma, Lindon's Company, one of the Big Mac regiments, Hansen' s Roughriders and one more I can't remember off-hand. Clan Invasion included units from ComStar, St. Ives, Rasalhague, and Clusters from Jade Falcon, Ghost Bear, Wolf, Smoke Jaguar, Diamond Shark, Steel Viper, and one that I can't remember off-hand.
They're good sets.