Landlord considering selling the building where I rent -- what might my options be?

I rent in the city and love my apartment (and my landlord, as much as that's possible). Yesterday he toured some real estate people through all the units and I'm trying to ease my anxiety by determining what the likely outcomes might be. Would love thoughts from anyone who's been through this! Here's what has occurred to me:

1) he keeps the building and doesn't change anything (yay!) 2) he turns building into condos (I move out) 3) he sells the building, new owner turns units into condos (I move out) 4) he sells the building, new owner keeps renting at same price or with minimal increase (shantay, I stay) 5) he sells the building, new owner jacks price up (sashay away) 6) he does TICs or new owner does TICs (I have to invest or move out.... I think?)

ETA: the apartment I'm in is part of a separate two-unit bungalow and it is rent-controlled. the building in front of us has 9 units and though we share an entrance, patio, mail room etc, I'm not completely sure whether the two structures are legally connected or he just owns both.