The idea of hanving a strength factor on each hand sounds a little to much to be honest. As for double swords,
I agree with the claymore point, Its hard anough to swing one claymore about as it is let alone one in each hand.
But they will no doubt apply some sort of two handed weapons thing soon(TM).
To be honest I think that as far as animations are concerned there is alot to do, even just in combat. Seeing as the team seem to want to give each race an indiviual attacking pattern, they would have to do one handed weapons, and then two handed weapons (In the far future of course). Stick the bows and possible crossbows, all sorts of other weapons, on top of that and it turns into quite a project.