Thomson Airways Boeing 787
Standard,
I'm assuming that to begin with at least any 787 will not be permanently based (as CabinCrewe suggests) but will visit in the same way the TOM 767 currently does at weekends for Cancun and Sanford.
As you say, the 787 has long been held up by BRS management as the great hope to largely overcome the route limitations of the short runway, from the original master plan (over five years ago) to the present day, with a suggestion in the master plan of turning circles at runway end being the way to get round the taxiing problem.
The glitzy video indicates air bridges to some stands in the future together with an extended apron running eastwards and making use of the land currently occupied by the old terminal block.
Assuming the sec of state doesn't call in the local authority's major expansion approval for a public enquiry (I wouldn't bet much money on what he will do) or the SBAErs don't win a judicial review (if they can collect enough money in their public begging bowl to get a review in the first place), the idea is to expand as the need arises over the next decade and one would hope there are early plans to deal with a 787.