Non-Limited Play Boosters
On an MTG Arena announcement concerning Play Boosters you stated: "Packs obtained outside Limited events (purchased in the MTG Arena Store, obtained from Set Mastery, etc.) will remain the same." I would like to advise against this idea. Gold packs were introduced as an attempt to give an alternative to constructed players to collect cards besides drafting. I think they largely accomplished that goal. With Play boosters coming to arena draft, Draft will once again be the most effective way to gain cards for constructed players. As such, once Play boosters are added I think gold packs will need to be buffed or page should be taken from tabletop and make a single type of booster for arena that is used in draft or purchased from the store.