Well Ultron has followed in the path of the great robot focused villians (such as the borg and doctor eggman) and is trying to attempt to turn everyone into robots in the next avengers assemble.
I have only found a very tiny clip
here (you see someones hand transforming at 0:20-0:22). I am hoping to see most of the avengers transform but I really don't know.
Last month Ultron did this in a graphic novel called "Rage of Ultron" (spoiler at the end of this description) where he did turn some of the avengers into ultron robots but even though it was 100 pages long there were only a few panels where you saw the avengers partially tfed which I have attached.
SPOILER BELOW ( you will need to highlight it)
At the end Hank Pym fuses with Ultron and flies off into space so he does not hurt anyone. It was a poof TF but it was interesting to see what ultron looks like with a nose. a few panel are on my photo bucket under rage of ultron
At this stage of the game Wasp better keep an eye out because she seems to be the last original avenger who has not had something really bad happen to her in the marvel now series that removes her from the team