Yes, after launch BE tokens are fully tradeable for blockchain and fiat assets including Bitcoin, USD and Euro on the Waves DEX (Decentralised Exchange). To access the exchange create a Waves account. Full details are here: https://support.wavesplatform.com/en/knowledge-bases/2/articles/4228-get-started-with-waves. Forecast Services Limited, the issuer of the tokens, plays no part in the buying and selling of the coin on exchanges.
Customer support service by UserEcho