It's possible that a Monster Style theme may be repeated at some time in the future or reintroduced as part of a promotional event. However, with 34 Monster Styles available, ZOS already has nearly three years of non-repeating content to work with.
Monster Style Arms Packs will always be a curated bundle of gear styles (1x Two-Handed Weapon, 1x Staff, 1x Shield, 1x One-Handed Weapon, 1x Bow) not intended for individual sale.
I'd say, almost certainly, but it will be some time, and might come in crown crates...
- Will the previous arms pack be back in the future for those who missed it?
I would consider that unlikely, unless they pack them individually in crown crates. Which they could, and add a special unlock for those who collect them all...
- Will we be given a choice to purchase them individually instead of forced bundles?