This is true, all i can assume right now that the more bombastic, cinematic scenes/gameplay are part of the story as they have been interviewed as saying there is also side content.
The Gadgets, Suits, And Sidequests Of Spider-Man
Sidequests
Insomniac and Marvel both care deeply about the story it has crafted for Spider-Man, but this is an open-world game, so there has to be more to do than just mainline quests to complete. We got a taste of a few of the optional sidequests Spider-Man can complete during the game.
General crime
As you web-swing around the city, you stop all kinds of crime. We stopped a store robbery, interrupted a car chase, and Intihar says Spider-Man also busts up drug deals in alleys and encounters situations where Mr. Negative’s Inner Demons gang is caught up in a shoot-out with the NYPD.
These general crimes will also change, shift, and combine as you make your way through the game. We saw this in action when the second robbery we stopped evolved into a car chase when some of the bad guys got away.
Black Cat Stakeouts
We came across one side mission from Felicia “Black Cat” Hardy challenging us to find a lucky cat she had hidden in the environment. It was implied that Black Cat is working on something big, and completing her missions will unravel her story.
Taskmaster Missions
Taskmaster is a Spider-Man villain with the ability to copy others’ abilities just by watching them do it. In Insomniac’s game, he has left a number of communication devices around the city with missions for Spider-Man to complete. The one we found tasked us with finding a ticking bomb, throwing the bomb into the air, and then firing off a series of webs at the bomb in order to mute its explosion. The more webs we shot at the bomb before it exploded, the more points we got for our mission rating. While completing these missions, Taskmaster will apparently be watching you from the shadows.
Oscorp Research Stations
Harry Osborn is in Europe during Spider-Man, but before leaving, he asks his very smart friend Peter Parker (who he doesn’t know is Spider-Man) to do him a favor and check in on a series of mobile research stations littered around the city. The one we investigated was looking into pollution in the city, and in order to complete the experiment, we had to swing through a series of pollution clouds in a certain amount of time in order to collect samples. These mission we completed was basically a speed-trial, but with a story conceit revolving around Peter and Harry’s relationship.
Fisk Bases
Wilson “Kingpin” Fisk is arrested in the game’s opening mission, but his business is still going strong. Throughout the world, you will find Fisk bases full of bad guys trying to keep their boss’ business alive while he is behind bars. These will function as combat challenges. The one we did took place on a roof.
Peter’s Old Backpacks
Along with the assorted missions you can complete, you also find Peter’s old backpacks all over the city. These backpacks will offer insight into Peter and Spider-Man’s backstory leading up this point in his life. The one we found offered some details about the first web-shooters Peter ever made. Insomniac is recording dialogue to accompany each backpack so Spider-Man can tell you a little about what’s inside each one.
Intihar said that this does not cover all the sidequests and distractions available in the city and promises players will encounter more in the final game. For more on Spider-Man, click the banner blow to read our gameplay impressions, watch interviews, and learn a whole lot more about the game.
I think they are trying to save some stuff for release and i think the "general crimes" category will have the most potential for non scripted game play.
There is some standard fare in the side quests as well (collecting back packs,speed trails etc) but i think the fact that they said this list doesnt cover evry thing gives credence that there may be deeper side missions as well.
) his reactions would be a mixture of 
and 
. Don't pay him any mind.
. First thing I thought of when I saw that in the trailer was those TLR threads on that 
.
