I am looking for a single word substitute for something worth waiting for.
A typical usage of this word could be-
I saw the trailer of Inception movie, and I found it _____.
While good, awesome etc tell us about the overall impression of the object, my focus is on the quality that makes it worthy to be waited for.
Another usage can be-
The 2018 model of this car is so ______. So I will not buy a car this year.