On a point of order M'lud, it's going to be a TRAM crash.

Presumably the CGI Metrolink tram which goes over the viaduct will go even further over the viaduct and annihilate the Street, hopefully with a large and implausible explosion.

They seem to like lethal streetcars on Corrie, Rita's nasty boyfriend was run over by a dirty great Blackpool double decker!