This is why I'm fine with the new book coming out later, as long as it doesn't happen right at the end of 3e like it did with 2e. I'd rather we had faded from the limelight for a while and hopefully get a book that's strong and internally balanced. Our current book is good, but it's because about 1/4 of our units are very good, 1/4 are decent, and the other 1/2 are bad. If we were to get a new book now, we'd probably get few if any of the buffs some units need while losing a lot of the abilities our good stuff relies on and probably getting warscroll nerfs to said good units.
Whereas if our book come out say in 2024, at which point we'll probably have over a dozen other armies much more powerful than us, maybe GW will give us a good 3e book like Stormcast, Idoneth or Orruks.