Yes, do give updates - it's always interesting to see how things pan out
Sometimes it's much clearer with adults than pups also.
Breed is irrelevant when it comes to the actual dog, but if you're really interested in knowing his ancestry from the point of view of genetics, another member recently went the DNA testing route. A couple of recent threads related to that here (looks can be deceiving!!): http://www.boxerworld.com/forums/showthread.php?t=120459
http://www.boxerworld.com/forums/showthread.php?t=120757
Breed is irrelevant when it comes to the actual dog, but if you're really interested in knowing his ancestry from the point of view of genetics, another member recently went the DNA testing route. A couple of recent threads related to that here (looks can be deceiving!!): http://www.boxerworld.com/forums/showthread.php?t=120459
http://www.boxerworld.com/forums/showthread.php?t=120757