I agree with most of the others on this point: protect your children from this cult FIRST AND FOREMOST. At this time, they have neither voice, nor choice, and it is IMHO immoral to force this cult down their throats. This is the best gift you can possibly give them, and later in life they will know it.
The damage done to them in just a short time in this cult could be and likely would be irreversible. When I divorced, I had two small children and even though I was not the custodial parent, I INSISTED that my ex not take them to the KH. And privately, I told my ex that if I discovered she was not honoring that request, that I would take the children and disappear with them. And she knew that I wasn't in the habit of making empty threats. She never took them to a meeting after that, nor did she discuss so-called JW "theology."
Another poster had a really solid point in pointing out that you are the head of the house whether you are a JW or not. You wife must defer to you in all things. If she doesn't then SHE'S NOT A PROPER JW. Then her going to meetings, etc. becomes meaningless. And if she divorced you to be free to do as she wished, she could NEVER be a proper witness, because she failed when tested.
It's easy to follow Jesus instructions when you're not being tried, but not so easy when you're in the breach. If you fail then, all your meeting going, field service, etc. from then on becomes as a tinkling cymbal.
My two cents.
Francois