It won't be a surprise for PS4 to cross 100 million units over how many years it takes to do that.
Out of the three titles you mentioned, two I find questionable for having potential to help the PS4 surpass 20 million in shipments this FY.
The last Gran Turismo game came out in 2013 which means it's been four years now if GTS comes out this year.
During that time Turn 10 released 4 Forza titles from 2013 to present.
According to NPD, Forza is the biggest racing franchise of the current console gen.
It wouldn't be a surprise if racing sim fans switched to PC/Xbox due to how long it takes to get a Gran Turismo game now.
For Spiderman, there's not much information at the moment, the Batman Arkham series showed that licensed superhero games can still be successful if they're not scheduled to be tied in with movies. The only thing I can see holding it back for PS4 Hardware sales is the likelihood that it is a single player game.