Are you sure it was "YEARS" of work that they scrapped? I only remember seeing a total of 4 screenshots from TF2:BoA.
What exactly is the copy and paste job? Are you saying TF2 is just TFC with prettier graphics?
After watching the latest teaser I am even happier with the direction of the game... looks fun as hell. But I do know one thing... people should try it before saying its gonna suck. Its kinda like eating new food as a kid... if you convince yourself its gonna be bad before you try it... then you will most likely never give it a fair chance.
If the game DOES turn out horrible I will be one of the first in line saying WTF Valve?!? But it comes free with HL2 Ep.2 so how much can you truly bitch about it?
[edit]Oh I guess I could have included a link for the latest teaser... I dunno if its actual in-game footage or not....
http://www.youtube.com/watch?v=PACZIIrxMh8
I lie... there were a total of 11 screenshots on IGN from '99 to 2001