MV - I'm sure the airport will come up with a suitable solution for the 787. I'd be more worried about where it will park, we've only got one large stand as it is, although there is a plan to extend the Western apron so maybe they'll include another 767/787 stand or two.
I suspect though that Bristol will be fairly well down that list of airports when it comes to basing the 787. I hope I'm wrong though, as far back as I can remember, the airport management have been pinning their hopes on the 787 as the door opener for long haul so hopefully they have a plan.