not really...flying should just come natural to him. I really want to see Superman hover
I think he'll hover, but hover isn't flying. And I know I always hated in any live action take when Superman goes from standing on the ground to floating with zero effort. It looks fake. Sure, he has superpowers but physics still apply. All special effects fall apart when the artists don't take physics into account.
In the trailer, we see Superman build up to a big push and launch himself forward at Mach speed. I think if Superman is going to go from standing to floating, there should be somesort of effort on his part, even if he's just kicking off with the tips of his feet. Seeing him float around like he's on strings (spoiler alert, he probably is) just looks absolutely fake.

t:
