By the way, this is now confirmed!
IMO it's got to be the most pointless revamp in the history of Freeview
EPG revamps!
Only one channel really benefits from it, ITV3. The move of BBC4 is, well pointless, while all that moving the kids channels has done is freed up an extra 4 slots in the 30s - though these are taken by Eurosport, Setanta Sports, E4+1 and soon ITV4. We'll still have the problem of new channels being hidden away at the end of the general part of the EPG!
The gap from 40-69 is, well pointless, and it leads you to ask why the Radio channels had to be moved (though they did!). And though most agree Radio channels should get 3 digit numbers, there is no need for them to be out in the 700s.
And finally, the Interactive channels move to the 300s. No big deal for those that press RED, but for those just browsing they were quite handy at the end of the EPG as you can just get to them by going down from BBC1!
So along with ITV3, the moving of Teletext and S4C2 are the only things that really make sense!