In other words, they could still pull off a KOTOR 3 that could bring some closure concerning Revan, Exile, Carth, Bastila and so forth.
I'm really like your optimism but I can't share.
Either BW concludes these storylines in SWTOR or there will be never concluded. KOTOR2 came out too long ago to make a successful KOTOR3. In fact I met lots of SWTOR player who didn't play KOTOR1-2. They are constantly asking "why is this Revan guy sooo important", "ooooohhh, I need this cool looking robot companion, who is this?". Bioware should had make KOTOR3 first - instead of KOTOR3 they made SWTOR.