He was not a Matrix rip-off...He's ALWAYS done the all black look...The only thing that's new is the long trench coat...His speed and agility were first shown in Umbrella Chronicles, not RE5...They just hadn't evolved to the level that they are at in RE5...
Suave-(esp. of a man) Charming, confident, and elegant.
That's Wesker in every way...So yes, he is suave, regarless of whether Excella is a slut or not...
His hair has ALWAYS looked that way, it's just more prominent a color due to the graphics being better..Both Marcus in RE0 and what's his face from RE: Dead Aim were MUCH more Final Fantasy looking then Wesker...
As for his plan...Fans can whine all they want...But that's what Capcom went with...There is no changing it...People need to make the best of it because let's face it...It could've been MUCH worse...And yes, he collected all the viruses...Big deal...he collected plagas and put them to use in RE5...So you can't say he dropped EVERYTHING, because he used what he got from RE4...
And really, this plan was BETTER than his original, despite that fact that other forms of media have used it...He was going to rebuild an Umbrella-esque corperation...He didn't need that after hearing about Spencer's work...Because he got all he needed there, instead of his original plan...He would be able to attain more power Spencer's way...On top of that, Excella basically handed him TriCell, so what did he need his own corperation for, when TriCell was doing his bidding...