H1B renewal can spouse travel later for stamping and stay in US

Currently myself & my wife have received I-797 approval for H1B & H4 visa renewal while we are in US. I am planning to visit India first to get stamping and can my wife travel later for stamping.

Present visa is expired

kindly suggest

Should be fine. As long as she has valid documents and maintaining her current status, it should be fine. Read US Visa vs. Status