In a few month, your oldest kid will have figured out that his dad is going to die soon at Har-Maguedon, unless he returns to the KH and start worshipping Jehovah again. The meetings will tell him so, his mom will tell him so, and his social circle will tell him so. Heck, the Bible will tell him so!
He'll also know that his dad's doubts are from Satan, and that if he wants to save his dad he should not listen to the critics his dad tells him about Jehovah and his organisation. He'll know he has to try his best to please Jehovah and give his best witness to his dad by his actions. Even if he'll find the meetings a bore, he'll want to chose them over any fun activity his dad wants to entice him away from Jehovah with. And he'll do that for you.
You're in it for the long run, 20+ years at least. You can make them happy and fulfilling years for you and them, or you can risk having to dread every minute of them for the aggravation both your wife and your kids will give you. Having your wife look you as dead is an ordeal, wanna guess how it feels when it's your kids?
Steve Hassan's Releasing the Bonds or his most recent book, Freedom of Mind, should be on your priority list. And maybe a book about teaching your kids critical thinking skills - they'll grow faster than you'll have time to think about it, and JW fear indoctrination doesn't wait for them to enter primary school. It's probably already started, what would any good JW mother tell her kid when he asks why dad doesn't come to meetings?