HyperDX isn't being deprecated, you can probably see on the marketing page it's still really prominently featured as an integral part of the stack - so nothing changing there.
We do of course want to get users onto HyperDX v2 and the overall ClickStack pattern. This doesn't mean HyperDX is going away by any means - just that HyperDX is focused a lot more on the end-user experience, and we get to leverage the flexibility, learnings and performance of a more exposed ClickHouse-powered core which is the intent of ClickStack. On the engineering side, we're working on making sure it's a smooth path for both open source and cloud.
side note: weird I thought I replied to this one already but I've been dealing with spotty wifi today :)