Fred and George Weasley are exclusive to the upcoming LEGO Harry Potter set 10217, Diagon Alley. This will be the first time these trickster twins have been available in minifigure form.
Minifigure Parts and Accessories
Both Fred and George are extremely similar in design (what did you expect, they are twins after all). Each minifigure is composed of four parts - hair piece, head, torso, and legs.
The hair piece is likely color matched to the rest of the 2010 Weasley clan (dark orange). The part appears to be similar to part 62810, but may be a new sculpt.
The heads are what set these two brothers apart. George is seen 'smirking' with his mouth turned up to the right (facing minifig) and no teeth, while Fred's head print shows a toothy smile with his mouth turned up to the left (facing minifig). Again, this appears to be the only distinguishing characteristic between the two figures. These will be new facial prints in light flesh.
The torsos and arms are dark orange with light flesh hands. The torso print on both figures features a nice tweed jacket over a vest, shirt, tie combo. This would be a new torso print. It is unknown if there is any print on the rear of these figures.
Finally, the leg and hip assemblies are dark orange with no visible print.
Comparing these figures to the reference photo on the right, they appear to be rather spot on. Notice in this reference photo how the vest, shirt, tie combos are different. As with the last round of Harry Potter minifigure pics, the ones shown above may be preliminary and not fully reflect the final product.
Army Building Potential
The ABP for these figures is low. Not much to stimulate multiple purchases of the figs in total.
Big Draw
The big draw could be for the torsos. Such professional prints in a relatively rare torso color may be appealing for creation of 'sig figs'. As always, the opportunity to fill out your LEGO Harry Potter minifig collection can be a draw as well.
(Pictures via FBTB Flickr stream and Harry Potter Wiki)