There will be a major shift drom gox to other exchanges or cold wallets. This means sideways initially.
Sure, a possible scenario.
After that the people who got their coins back will resume trading on other exchanges making the price go up.
How would that make it go up? The only trades you can do with coins is sell for fiat, which makes it go down. Or for alt-coins, which makes the alt-coin go up.
Some people will HODL making the price go up since less coins available.
Mtgox is making everyone HODL their coins, whether they like it or not. If they release the coins, the amount of people HODLing will only go down. EDIT: No matter how you look at it, Mtgox putting coins in the market makes more coins avalible, not less.