Keep in mind, fake 360 update information comes out all the time from "insider sources" all the time. So, it's no different with the PS3. In fact, we can completely write off this source because he's already setting himself up for failure, while still being able to say he was credible. He names the 3 most likely updates that we already know are coming soon, then he goes on to say how everything can change and that he wouldn't be wrong if they did. Sorry, but that's as good as saying, "I know nothing." Then he goes on to say how super stardust will have co-op soon, something the game already has, and we already know is getting an update.
All we can really hope for is 2.4 having 2D trophies, and all we know is that Konami has been pushing Sony to get that update out the door so that MGS4 can make use of them.
Trophies are basically the PS3's achievements. Except with the PS3 you also get little bits of media with those achievements. When Home comes out, the plan was to be able to take 3D trophies, basically 3D models of stuff given to you in game and display them in your Trophy room in Home, and maybe display them in your apartment too.
Right now, since Home's public beta was pushed back, they're working on getting 2D trophies you can see in the XMB as a way for developers to start using them in their games. Keep in mind that Trophies aren't dependant on Home, it's just that Home is a cool way to show them off.