Board Thread:Questions and Answers/@comment-10941901-20130715141340/@comment-1210805-20130719041440

Impossible to say at the moment. The next gen version will basically be an upgrade of the current gen version and Kojima has said they wont start it until the finish the current gen one. He has also said that the footage they've shown of the game was all 60 fps (reduced to 30 by most online video players) and that's the current gen version. So visually you could expect higher res textures, better rendered lighting and maybe higher quality models but the game probably wont be drastically different.

Online it's hard to say. PSN has always been fairly open in terms of cross platform play, and unless there's a huge change in the architecture it is theoretically possible that there could be connectivity between PS3 and PS4 users. Xbox is a little less likely as they've never supported cross platform play with any device, and have strict policies against it. That said if it's the same online service then things could be different. Until we know what Sony and MS plan to do with their online services, and until Kojima Productions have started working on the next gen version of the game there's really no telling what they will do.

In terms of usability though there are a few things to keep in mind. While the PS3 and 360 are dated, they are also familiar. Developers know what they're doing with these systems but are still learning the new systems. Also, if you're playing online then population will have a big impact on your experience. If there is no cross platform support then the userbase will be more divided. Current gen consoles will retain a larger userbase for a while so you may be better off playing the current gen version at launch.