2. New vehicles
There are plenty of cars, bikes and helicopters in GTA 4, but what happened to the cool stuff? We want planes, jet packs, BMX bikes, parachutes and more. We know they aren't in keeping with the game's story or characters, but who cares? Once we're done with the story we just want to mess about and a larger assortment of vehicles would help no end - not to mention completely change the dynamic of many multiplayer games. We spent loads of time messing about on the BMX is San Andreas and it'd be great to do the same in GTA 4.
1. Theatre Mode
If there's one thing we really wish Rockstar had included in GTA 4 it's a theatre mode, similar to Halo 3. When playing the game alone or with friends online there were so many times when we wanted to see what happened again: when we saw a police car spiralling above us in a high-speed chase; when we turned a corner to be met with a great big explosion that wasn't our doing; or when we missed an exit on the freeway and went flying through the barrier and onto the roof of the buildings below. Not being able to see them again in their full multiple-angle glory is a crime that we really hope Rockstar will rectify.
What do you hope Rockstar will add to GTA 4 through DLC? Let us know in the comments section below.