When I do a flight query, the website shows a combination of a 777-200 or 777-300 (not ER). Doesn't specifically say if Suites will be available. My hunch is no but the best bet would be to call your local EK ticket office and check.
Equipment changes are happening all the time and it may depend on whether or not you flight direct from DXB or via BKK.
Good luck. Let us know how you get on and whether or not you need more help.