PS. I saw it has already been mentioned here. The many versions are starting to confuse me.
Bruce released his original albums as they were made (of course). A few had some special editions, like Japanese editions which had some extra tracks on (mainly B sides as bonus tracks).
Then in the early millennium, they were remastered and released in nice CD slip cases, and included lots of bonus tracks that were recorded around the time of the original album.
Now, some twenty years later, we're getting remasters that have been - apparently - extensively touched up, to create what are meant to be the "definitive" versions, that will be the "proper" versions going forward.
The album with the biggest list of changes is Balls to Picasso, which is going to be released as More Balls to Picasso. This has actually had extra guitars and instruments recorded for this release, and mixed into the existing tracks to create a record that features all the same songs and the same recordings, but with the extra arrangements and remastered production. Nothing has been removed from the album - the recordings of the songs remain the original ones - but they HAVE had extra bits added to them which weren't there to start with.
Some songs sound like they've been extensively reworked, while others feature only minor improvements, such as bringing the drums forward.
Despite Bruce saying they've "beefed up the guitars, added extra rhythm guitars", the currently released track from More Balls to Picasso - More Gods of War - sounds identical to the original when it comes to the guitars. If you don't believe me, go and listen to them both back to back, which I have done. The drums sound a lot clearer, but the fat crunchy rhythm guitar was already there.