Sony will never give up the cash cow. they got such a sweetheart deal on Spidey at the expense of Marvel.
Now it's in perpetuity.... as long as they make them, they keep the rights. Which is a shame, I'd love for Marvel to get it and work their magic with it.
But who knows, with Disney at the helm they could open up the checkbook and go nuts to get attempt to get everything under one roof.
Marvel/Disney oughta use Miles Morales as the Spider-Man of the Marvel Cinematic Universe, and let Sony keep Peter Parker.
It's a pity Fox still has the rights to the Fantastic Four and the Silver Surfer. They and Dr. Doom would fit the MCU perfectly.