To my knowledge they haven't made any public statements that they will - it seems as though it would contradict the intentional steps they've taken as precautionary measures.

Two possible approaches:

• Gamble on the promise with the hopes of being rewarded with a gain that is commensurate with the additional risk taken

or

• Wait until after the official EOS blockchain is released next summer and acquire actual EOS tokens/coins. You'll miss you on some gains but surely not the bulk of long-term value

Given that block.one/Dan seem to be motivated more by creating a game-changing platform than by making investors wealthy, I don't think there is a high likelihood of them providing any statement to allay the fears of prospective investors.