8 week old German Shepard mix?

We adopted an 8 week old German Shepard mix, and we think it is mixed with rottweiler. Although his tail is curled over, was wondering if anyone knows if a German Shepard/rottweiler mix puppies tail would be curled over (like an Akita) or if it might be mixed with something else. Was wondering if his tail is going... show more We adopted an 8 week old German Shepard mix, and we think it is mixed with rottweiler. Although his tail is curled over, was wondering if anyone knows if a German Shepard/rottweiler mix puppies tail would be curled over (like an Akita) or if it might be mixed with something else. Was wondering if his tail is going to straighten out as he gets older, cause i know that german shepards ears straighten out by about 4/5 months.
thank you for your replys
Update: heres a picture of him

http:// i49.tinypic. com/ 2dsmftj.jpg

whole body picture
http:// i49.tinypic. com/ 2ir6uk5.jpg
without spaces in links
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