I saw some of the new Avengers - Age of Ultron line at a TRU store a couple of days ago.
The 2.75" figures look thoroughly disappointing. The only possible interest I have in these is the playset components that can be combined into a larger Avengers playset. It's cool that there's another Quinjet and the cycle, but otherwise? It's kind of a letdown.
There actually IS a line of 3.75" figures for this line. But they're the *REALLY* dumbed down type of sculpts that we saw in the Avengers Assemble line in the past couple of years. To quote Scott, "They look like cake toppers". Personally, I'm hoping that we get some Age of Ultron sculpts of the new characters like the twins, Strucker, Ultron plus the new looks for Cap and Iron Man in the Avengers Infinite line.
The one really semi-impressive piece that I've seen so far? The Titan Tech Hulkbuster Iron Man. It looks cool, but it's horribly underarticulated. I think the Marvel Legends B-A-F version might be infinitely better.