I'm currently working on H1b visa (expires in 2019), but planning to do an MBA in Europe in 2017 and then come back to work in the US in 2018. I understand it's totally okay to study in the US while working, but if I study in Europe for a year and then come back with a job offer from a US employer, can I still use my current H1b status? How does it work?
In addition, my current employer just started filing for my Green Card, is it possible to study abroad next year without losing the green card application, if I stay with the same employer on their payroll (e.g. take sabbatical)? Thank you very much!