UTXOs at the fork block will be copied exactly. that means that any addresses in your electrum wallet that hold BTC will also hold B2X after the fork. however, you can't simply send the B2X coins out of that wallet. you will lose your BTC by doing so because there is no replay protection -- the transaction will be broadcast on both chains. i would be careful and avoid transacting after the fork if you want to make sure to retain both coins. i'm sure some reliable methods will emerge to split our coins.

no one knows regarding future demand for B2X. if miners and major services really follow through, the price might be significantly higher than the futures market currently indicates. we really don't know. in time, i believe the legacy chain will emerge victorious, but i won't be so foolish to immediately dump my B2X for ideological reasons. i'm trying to accumulate bitcoins here!

FYI this is a good site to track electrum servers to connect to. you can connect to Core servers rather than connecting randomly.