Damn, my cover is blown. Time to come clean.
I am a R* employee. My official title is "Fan Forum Ramblings Aggregator". My job is to troll around these forums all day looking for ideas to incorporate into our games. See, we at R* don't really know how to make entertaining games, and without these forums, we would be totally out of touch with our fan base.
In fact, the real reason GTAV has been delayed is that we are just now finding some really useful ideas, and we want to have time to implement them. Like riding around on elephants, or bringing back Niko (can't believe we didn't think of that!), etc. As long as you guys keep feeding us these inspired ideas, we promise to keep delaying the game!