My opinion, ask more people for sure
我持J1,LP持J2,一直用工卡工作。J1递交485后,申请工卡获批。这意味着J1立刻invalid,当然J2也是同样情况。
Applying and holding a EAD card does not make your current J1 invalid, so your J1 is still valid until it expires, and J2 follows J1's status.
所以虽然我们的J还没到期,但现在都是AOS(right?),用工卡工作。
You are not AOS-Unless you start to use EAD/AP you are still J1.
那么如果LP想申请H1,是不是也要出境再入境才可以?
No.
她还可以持J2类别的工卡继续工作吗?
Yes.