Here is the definition of "COVER" according to Wikipedia:
"In popular music, a cover version or cover song, or simply cover, is a new performance or recording of a previously recorded, commercially released song by someone other than the original artist or composer."
And now, the definition of "REMIX" according to Wikipedia:
"A remix is a piece of media which has been altered from its original state by adding, removing, and/or changing pieces of the item."
So, in my opinion, I'd say this is a COVER with some original content. Not so much a remix.
It's good either way, right?