I don’t think we’ll get anything cycle-exclusive (including MTX rewards) until 1.5, at least. Devs have posted the Last Epoch Roadmap about a month ago and it’s all core stuff they want to add to legacy as well.
After that they might start doing some cycle exclusive stuff, even if Mike says on his streams that they don’t really know yet what it will be. Probably cycle-exclusive uniques to start with.