Been to a few EBACE.
Best place for making and renewing contacts in business aviation.
Yes this year looked a bit slow.
Do not know if the solution of moving all together will really be good, OEM take up a lot of space and do not see how is going to work. The present set up is not really a problem in my opinion, is not lake the 2 halls are miles apart.
Couple of advice.
Try to get an invitation, I believe the ticket is not cheap.
If you want to stay the night, plan ahead and it won't be cheap.
Get really comfortable shoes.