Best advice I ever received prior to moving overseas for work 14 years ago...
If there is a possibility that you will be moving back to your home country, do not sell your property. Keep a foot in the property market to avoid being priced out if/when you return, especially in hot real estate markets.
In your situation, the rent would more than cover associated expenses of maintaining the property. I would keep the property and hire a property manager to manage it for you, since you don't know if you want to come back to the US.
if you decide you never want to come back to the US, and you've established yourself in the new country and have citizenship in the new country, then you can sell your US property at a later date.