1) Yes and no.
2) Yes becuase anything is better than what we have currently. No because it dosen't seem like one of the most popular.
3) Mon Calamari, Nautolan, Togruta
4) Yes, in the codex they are clearly republic-aligned which makes me think they will add two races.
5) Not as human-like as most, definitly a good start.
6) n/a