Well, if you want a good Winter Soldier collectible you could always go for the Hot Toys fig. They are a bit pricey (230$) but they're the best as far as "action figures" go (i don't classify them as action figures since they aren't meant to be played with, seeing as they use real leather, cloth,the sculpts are near identical to the actors and all that). Though it'll be a long time before it's released.
i was looking into that i'm a 1/6th collector. but it said it shipped third quarter of 2015 . i just cant do that. if it was for sale now i would have 100% bought one tho! .