回复：我担心新公司不熟，一旦有裁员(这种事情在美国谁也不敢打保票)，影响我的绿卡申 请身份 这样我在老公司还可以兜底， 不知道此

If you are laid off and your old employer want to hire you back, you just go back to work for your old employer at that time and you still will be OK for your I-485.