1) If your wife did not apply her PERM/I-140, she is not qualified for H-1 beyond 6th year;
2) Being the spouse of you who is primary applicant of I-485, she may get her EAD regardless your applying/using EAD.
2) Being the spouse of you who is primary applicant of I-485, she may get her EAD regardless your applying/using EAD.