So "Inhumans" is the way for them to get around the X-men and mutants IP problem.
Sony needs to do a deal with Disney for Spiderman. Spiderman is an orphan franchise doomed to repeat its reboot cycle, to seriously diminishing returns. Captain America Civil War is the perfect vehicle for it given during that story line he reveals his identify to the world as he comes out in support of the Super Hero Registration Act.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."