After being repelled and due to the fact that he is a cautious commander who got the job only days ago, I think Meade will go find good, defensive terrain and entrench. The fishhook position at Gettysburg seems not feasible to hold with about 50,000 infantry because you have to occupy both Culps Hill and Little Round Top or Devils Den. For the AotP it will be important to link up at least with the Harpers Ferry garrison as OTL after Gettysburg. I know where he will go and you will know soon as well...Wow, it doesn't really feel like a Confederate defeat. The best move Lee could make is like in Gingrich's Gettysburg, I think, but then we'd just be reading Gingrich's Gettysburg, and we already have a Gingrich's Gettysburg.