Mr Angry - certainly a possibility. On the one hand it means extra publicity with all the assembled industry bigwigs in town. On the other hand whenever a major new airport opens it gets plenty of publicity anyway - so would coinciding be a major gain ?
Furthermore if BER management want to coincide they need to be *very* sure that everything will work correctly.
If it coincides and goes wrong it's a major piece of bad publicity with everyone watching and a lot less slack in the system to fix foul ups.
Perhaps better to go for a slightly quieter launch and present it as a model of solid German efficiency (the 'made in Germany' brand) while doing their best to fix inevitable teething problems ?