Thanks to NinjaCyborg for posting a round-up from the British Toyfair on our message board.

Transformers selection was clearly visible through the booth window so I don't see why I shouldn't report what I could see. Not like I signed an NDA or anything.

A lot of the display was current releases - ROTF scouts, HA Bumblebee, Leader Prime.

On display, but not on general release yet, was:
Leader Starscream, ROTF Bludgeon

and more importantly from the new stuff was:

WFC Optimus - looked bigger than deluxe, more like Voyager size

WFC Bumblebee - awesome vehicle mode, and even more awesome, metallic gold paint/plastic

Universe Seaspray - ultra sized I think, since it was bigger than ROTF Bludgeon that it was next to. Looks just like a huge version of the original Same blue and white and yellow for the turbines. Very nice.

Some new G1 style legends - I think I saw a jeep, Outback maybe? or Swindle?, It was khaki coloured but the view from the booth window was too far to see the smaller toys
Some kind of combiner - could have been power combiners, but looked to me more like it was built from Legends sized figures - and it was definitely not Devastator. One of the legs looked like a jet or shuttle of some kind. Could be a Legends Bruticus set? Was very lanky and with wiry limbs, but humanoid in shape.
'Leader' ROTF Bumblebee or whatever it's going to be called

Also visible through the Hasbro window was some Marvel Universe stuff, but nothing new and no Iron Man 2 that I could see.

Also saw the A-Team figures on another booth. Not bad likenesses of the new actors. Still hate Neeson as Hannibal though.

Funny that Mattel or Mattel distributors are totally absent from this fair. No wonder you can't find Avatar toys anywhere.