From Reddit:

Hey everyone! I'm Aleco, the Final Design Lead on Hearthstone.

I know a lot of you have been asking about Standard balance changes. We're putting together a pretty big patch for ~1 week from now. In all honesty, I wish we could have shipped this patch a little sooner. The holiday break pushed our patch schedule, but the meta doesn't take a holiday, so I empathize with players who feel like this patch is coming late. Though I can't promise anything right now, we're chatting as a team about if we can adjust our patch cadence next holiday break. Hope you all enjoy the upcoming patch!

Source: https://www.reddit.com/r/hearthstone/comments/10fnmvh/standard_balance_patch_timing/