Probably bicycles, we saw the characters running around normally in other parts of the trailer.
Because nobody thought RS-remakes would be necessary at Nintendo, as all pokemon from those games can be forwarded to B2W2 if you wanted to.. Not so much the case with GenIandII.. Hence the remakes..
Hoenn remakes are NEVER going to happen.. Remakes were made so that pokemon from their original regions were made available to the advance and ds generations. Hoenn pokemon can still migrate to GenV, so there's nothing that would indicate that a remake would be necessary.
We will get a R/G-remake AGAIN before we get a R/S-remake...
Calling this, the knight guy in the statue is a Ground-type Gym Leader. Uses Palpitoad, Ground Eeveelution, and Golurk.
Also, I think we can all agree that Froakie will be the new Oshawott in terms of fan opinion.
They probably will. Unova is the only new Region not to, and we only saw few Pokémon. There are a lot of old Pokémon in the game, that probably means something