There are five specific sayings that the Berry Master's wife is looking for in Pokémon Omega Ruby and Pokémon Alpha Sapphire and if you provide the one word that matches to the one she vaguely recalls then she will give you a rare berry, the sayings are "Great Battle," "Contest Challenge," "Overwhelming Latias," "Cool Latios" and "Super Hustle."
The sayings that you need to tell to the wife of the Berry Master in Pokemon Omega Ruby and Alpha Sapphire are two-word phrases once per day using the easy chat system
super hustle,cool latios,angry abra
There is no roller skate item in Alpha Sapphire.
You can catch Skitty in Pokemon Omega Ruby and Alpha Sapphire in the barks of trees.
You battle Kyogre for your chance to capture it in Pokemon Alpha Sapphire after you capture the groudon.
Magikarp
Yes, Tm's in Pokemon Omega Ruby and Alpha Sapphire are re-useable
No, you will need to trade for them or transfer them via Pokemon Bank to get them in Pokemon Omega Ruby and Alpha Sapphire.
Houndour can be obtained by trading from Pokemon X or Y. It cannot be caught in the wild in Pokemon Omega Ruby and Alpha Sapphire.
You will need to trade for Weedle or breed Kakuna. Kakuna can be found only in the Safari Zone in Pokemon Alpha Sapphire and Omega Ruby.
No
It is not yet known if there is a building location for the GTS in Pokemon Omega Ruby and Alpha Sapphire.
Yes, all the TMs that were in Pokemon X and Y will be available as TMs in Pokemon Omega Ruby and Alpha Sapphire.
No, there are no roms for Pokemon Omega Ruby and Alpha Sapphire currently nor a working 3DS emulator. (They are also incompatible with the Desmume emulator.)