The security issues upgrades definitely seem good and necessary. I am also interested in how exactly the change in scaling for battle rewards will change the return as you move up the leagues. I'm looking forward to these.

I really really hope you don't continue to use vouchers for after the presale. It makes sense for presales with the extra promo card airdrop and encouraging staking sps. For the general sale it feels like it will just be off-putting and make it far more difficult to onboard new users which historically has been something that Splinterlands has done very well.

If flooding the market with new packs is a worry they could be released in waves, such as releasing only the amount until the following airdrop and then opening up a new wave along side the airdrop when everything is ready. Another option would be to release a pack every xx seconds where the shop will steadily gain new packs. This would make it difficult for people to buy in bulk but would allow everyone, particularly new players the option to get a few packs of their own.

Finally, there could be a hybrid option where the shop steadily restocks the packs but you could use vouchers to bulk buy packs. This would let newer players get a couple packs and feel like they have a chance to buy in while still letting larger investments go through with the use of vouchers.