Hezbollah has been launching combination rocket/drone attacks along the entire northern border for the last 6 months. In the least week or two there have been several reports of hits without any warning sirens. I’m inclined to say that this is indicative of a shift in tactics and/or technology that has been shared, and may also impact the Ukraine war (the drones are the same Iranian design/manufacture).
This incident will draw lots of saber rattling against the Houthis, and there will probably be some air raids on Houthi military assets by various coalition forces. The ones to watch here are Saudi Arabia and Jordan - they both have the opportunity to earn some goodwill for relatively little risk and achieve their own goals at the same time.
I have no clue if the Houthis will attempt to escalate this with larger drone swarms. Their doctrine so far has been less than 20 daily, most of which are targeting ships or Eilat. But this is the first time they’ve directly targeted Tel Aviv.