LotR sequels probably had a lot of hype prior to release.

The latest God of War had a great release afaik.

To be honest, it's hard to remember which things were really hyped up before release and met expectations. I keep thinking of stuff I heard was good after it was release, and things which were hyped and failed, or havr not yet fully delivered on the hype. I can't think of any tech which fits the bill. Maybe raytracing? Most tech tends to be overhyped.