Did they not change the algorithm also or should it be the same (if op tries it and shiny to shine doesn't work)?
Finally I'd like to point out that electrum never ever generates bip39 seeds so what third space is saying cannot be true. Current versions of Electrum do use the bip39 dictionary though but a different method of converting the mnemonic to the wallet's private keys.
Yes this is true, they went from mpk's (i think) to the seeds that are now used in v 2.0.