Here is a look at some of the promotional items we can expect to see soon enough:
I'm a bit bummed that Black Widow is missing from most of the merchandise again. I've gotten used to the lack of Quicksilver and Scarlet Witch, sadly, but Black Widow should be included with the guys. Then again, it looks like Hawkeye is also missing from the above merch, so I'm not entirely sure what is going on here.
Some more promotional images that offer up a closer look at Vision:
And here is a HQ promotional shot:
Bonus! Here's an Ant-Man concept art image:
Source: Comic Book Movie (1 & 2) via Facebook (Tony Stark Sincero)