In the long run, Bitshares 2 will not be able to compete with BEOS. I think it would be illusory to run BTS2 in parallel with BEOS. A DEX needs a lot of liquidity to take-off and there is no point to split it between two clones, BEOS having a total technological advantage. I like your BEOS idea A LOT ! From my point of view, I would prefer to do a pitch fork from BTS2 to BEOS. Imagine, an unlimited tx/sec low latency DEX with no transaction fees (no need for BEOS block producers). The scarcity (value) of Bitshares would result from using it as collateral for BitAssets (like HERO).