I think that after registering tokens in our wallets (which is already finished), no one will sell it. In addition, developers do not recomend to make movements with STP.
Everyone is waiting for the launch of the network in order to exchange their tokens for coins, in an amount equivalent to the moment of registration.
For this reason, exchangers for the token, now, do not matter. After the launch of the network, the question of liquidity will be more important.
Yes. Everything now depends on the blockchain launch. Question of liquidity, on the other hand, can be solved by OTC. Not recommended though, but seem a few holders of other coins engage in OTC in order to accommodate new holders