Okay, I like speculation just as much as the rest guy - but this
is just getting ridiculous!. I'll take out a few points:
1. Being only able to fly 1 ship - likely the AP Gunner. Where did this even come from? I remember a vauge quote from Burnd about it, but it didn't imply that you would only be able to fly one ship! Besides - what POSSIBLE reason could ES have to make that happen? They don't!
2. Plot based, with little "meat" gameplay and a small sandbox. That is absolute pure and compltely unbased speculation - it doesn't even make sense! Representatives specifically mentioned that they are keeping the core sense of gameplay, to the best of my memory. This would
kill their fanbase, kill the game line, and likely kill the company (or a large portion of its profits). Why on Earth would they do this? Think about it.
3. Removal of the script editor to make the game mission oriented, and less "automated". In my opinion, this is borderlining on paranoia

(no offense intended). There is not even a hint of an implication of this in the information we have, and it doesn't fit wit the facts we
do have. For instance, they developed an
enitrely new game engine to allow them to do things that they couldn't before. THAT is a fact. They mentioned that modding WILL be a part of Rebirth (at least eventually). THAT is a fact - here is a quote from FEDCON:
We can’t do it so openly like we’ve done it before in the earlier games, there was a basis, where you not only changed the technology basis, but also the gameplay basis from game to game. Everybody could understand immediately what the changes are and what to work with. The present game is very different and the technologies that are applied in it are different and that’s why we can’t invite Modders and involve the community. But this is definitely our goal.
About the plot - another quote, from FEDCON.
And when I play through the before mentioned plot, so to say the story of the game, it is just an introduction, because we want to keep the sandbox-character of the game, a game where I set my own goals, where I can freely develop, nevertheless the plot is an important beginning and it shall be exciting and great and when it has at some point reached its top, when it has reached its goal, then it releases the player in an even greater universe with more opportunities to change the universe
So, I said it once and I'll say it again: X:Rebirth will be of the SAME quality as we have come to expect from Egosoft - and I expect
none less. They spend 4 years on it already! It's a lot of work, and they put a lot of effort to build a whole new engine. It must be a great concept to be worth all of that work

You don't spend 4 yars making an entirely new game that you don't even want to play!
Look at another quote as regards modding, too:
Yes, we're not changing our philosophy. We'll open up the games to the fans and work with them. The foundations of this have long-since been established through our forums and its embedded 'DevNet'.
AND the plot/sandbox mode:
The story is good and important for newcomers, but we want to ensure fun gameplay in all areas. 'Yes, the plot might only last 10-20 hours, but that's not why I buy the game,' say most X-fans, because there's at least another 100 hours of gameplay beyond that... once the story is over, the player is free to do as he likes in the universe. We're keeping the sandbox.
So stop all this negative speculation; at once! It doesn't have a base - it's speculation
based on speculation. Reliability
really starts to break down at that point; and its no fun at all.
For more info, read this page. It expains a lot about X:Rebirth.
http://www.egosoft.com/x/xnews/201105_1_44News.html