The updates are monthly, with quite the regular release rate, with a decent amount of content each month.
The story is not close to the climax yet, so the full entire game (part 1-2-and the most likely part 3) might not be finished until some time into the next year.
I personally don't have an issue with the schedule of playing the game with monthly releases of content, since the content is sort of self-contained during each of the updates, you aren’t going to find yourself frustrated because of annoying cliffhanger midway through the game, but you might find yourself wanting for more of the game once you are done with the update.
If you think it's worth it to wait for an entire year (number I came up with no real reference or information), then you should wait it out. I recommend just playing the game and joining the monthly waiting game with the rest of us.