J2 visa transition to J1 or H1B despite home requirement

[ej19]

I am a physician on a J1 through the ECFMG with a 2-year home requirement. 

My wife has been working on a J2 as a teacher for the past 2 years.

I have been offered a position as an attending and am about to start the process of obtaining an O1 visa. 

Can my wife have her school sponsor her for an H1B or a J1 visa or is she bound by the 2-year home requirement of my J1 ?

If she can only transition to a J1 for teachers (which is limited to 3 years) will she be allowed only 1 more year or 3 or none at all (as she has already been teaching in the US on a different visa) ?

 

Thank you