Took a break from royals, thinking about coming back. Idk if the update happened already, but if so, do I still need to HP wash or am I chilling now.
HP washing was never mandatory, just comfortable for you and spared reliance on HB. With the update it should be: Warriors Max:4K extra HP Ranged Attackers:2K Mages: None. No idea what class you are, but HT legs hit 9.7k still.
The answer to your question lies in the quote you quoted yourself. You can see a sneak peak of these potions in the recently uploaded beautiful v54 preview. They will increase your max HP permanently (essentially what HP washing does)
If you want the HT without HB. Yes. You can now HT w/o HB though. Before you couldnt at lower HT lvls