To be honest I don't they will make those legendaries that u listed catchable soon because if you think about it they used the legendary dogs as the prizes for the official tourney. It'll be kinda pointless if they make it capturable any time soon
That's right, if they wanted to release those stuffs they could've done it way before.
More likely it seems that they want to distribute legends via Tournaments and such.
+1 for it, we only get 1 chance to catch em and it sucks to see when the sync fails :/ . Reminds me of my hasty Celebi <_>