There is not planned to be any limit on the starter packs. The problem with CL was that we sold massive numbers of packs at extreme discounts in a desperate attempt to get revenue, which caused a lot of packs to get purchased that players didn't really want or need and which are now being offered for sale at minimal prices to try to recoup some of the losses.

That will never happen again, and is very different from the Starter packs that are being proposed here. The Starter packs have roughly the same price per card (by rarity) as Booster packs, so players will only purchase them if they either need the cards to play with, or if for some reason common and rare cards are selling at a premium on the market, in which case the arbitrage opportunity will bring them back down to similar levels as the Rebellion cards are at now.