Welcome to the forum. Read some of the other threads in this particular forum and you'll see what we know thus far. There do not appear to be delays in building or even shipping A5s to the States. In fact, see AB's thread here:
http://www.a5oc.com/forums/showthread.php/my-a5-missed-757/index.htmlwhere we just discussed the fact that his is on the ship now.
Rather, the problem is that Audi is showing a port hold on all A5s until April. That could change at any time...or not! We just don't know, but dealers swear up and down that Audi won't park these things in port for 4 months or so.
Now, all of this said...if you haven't actually ordered yet, I have no idea where they are on giving build weeks on A5s for the U.S. right now. I ordered in early October and my build week (second week of January) was assigned on November 30. If you did or do order - good luck and get in line!