At the end of this month, Blizzard will shut down sales of loot boxes for Overwatch – a stepping stone towards the launch of Overwatch 2, and consequent overhaul of the whole business model for the Overwatch franchise, in early October.
This isn’t an unprecedented move; the original Overwatch will be fully replaced by its sequel, rather than running alongside it, and it’s fairly common for developers to phase out various monetisation aspects of their live service games some time before the game itself shuts down.
The reasoning for that is clear: selling virtual items for a game that won’t exist in a few months is just asking for a consumer backlash and some serious side-eye from consumer watchdogs and regulators. In the case of Overwatch, though, loot box items will actually continue to be usable in Overwatch 2, so this logic doesn’t really apply.