In the future when Rockstar launch updates for GTA 5 we may not see those updates arrive for the Xbox 360 and PS3. They have been offering support for the older consoles but going forward this may not be so.
Rockstar have been telling owners of the Xbox 360 and PS3 that they will not be left out and they got the Heists DLC along with the Christmas DLC. However Rockstar said that looking forward it may not be possible for the some features to arrive on the older versions of the consoles. One of these is related to the first person mode of course.
The first person mode offers thousands of animations and this is something that the older generation of consoles doesn’t support. So if you have the PS3 or Xbox 360 you may not get some of the updates and DLC in the future.