I was diagnosed just short of 3 years ago.
My psa was 235. It's now been around .06 for the last 33 months
I've just been on Quarterly HT and enzalutamide.
I'm still leading a pretty normal life (different than it was but still good)
I know it won't last but every day lasts a day and every month a month and I enjoy each of them.
I can't tell you how you husbands life will go but only to try to enjoy every day as much as you can.
Early on I had oncologists, gp's and others pat me and say they are so sorry which made me feel like I was going to die in months.But I changed my diet significantly (helped greatly by my wife) kept exercising and got on with life.
I'm really sorry to hear of your husbands redundancy and I hope he moves on into another job soon. I know redundancy is very soul destroying - I've been there.
Keep posting, this sight is so good in support and guidance.
All the best