I of course will not be invited I guess - as I'm based in NL (even when I applied and owned the AMEX card) and was SEN during the first few years of the card and after that ditched M&M for another *A program, although I had the card just to keep miles active.
For those who managed to get an invitation and will attend, if you will so kind with any opportunity pls do check with them on the eligibility for the card - I hope that they will let me as an NL citizen/tax payer with a BE account to apply for it. (if they really do need a BE address but not residential eligibility, that should also be doable).
Cheers!