First of all, dad can never be phased out. My biggest most awful fear when my ex left me for OW and married her was me being phased out as mom. My daughter was a baby, not even a year. it was just me and her, then the 3 of them. I thought she would grow up thinking that OW was her mom.
No way, man. We don't have 50/50, I get majority, but either way, my daughter has always known who mom was and always will be. There is no phasing a loving parent out. So try to shake that thought the best you can.
Now, you are absolutely speculating that this is your W's plan. Did she say as much? I do not think there is any reason for your to lose 50/50. Especially given all you do for them already and their involvement in their lives. You say the courts favor the mom. But the courts actually favor the kids. Especially when you have established so much. Gaining it in the first place might be difficult, but you've got it, and I don't think losing it will be so easy.
