please note: no spoilers were used in the preparation of this post
I know it's unlikely but could it be possible that Rob & Tracy and Kirk & Beth could get married in a fantasy double wedding that could blow the socks off Coronation Street watchers around the world? (No, it's not possible - ed).
Consider the current situation. Kirk is intent on proposing to Beth (once he stops reading 'Three Little Pigs' and finds the right, dull moment). Rob and Tracy seem to have hired Michelle as their wedding planner to create the big day (unless Rob gets arrested for murder - and what wedding doesn't have to deal with contingencies like that?)
Bottom line. Here's what I see. Both weddings are are unintentionally scheduled at the same church, same day, same time. It's impossible to re-schedule so the weddings must go on, simultaneously.
Imagine the pomp, the ceremony and the vows.
"I, Kirk, take you Beth, to be my wife, to have and to hold from this day forward, for better or for worse, for richer, for poorer, in sickness and in hypochondria..."
"I, Rob, take you Tracy, to be my wife, to have and to hold from this day forward until death do us part or the coppers nab me for the murder of Tina, whichever comes first."
... it's a long shot but fingers crossed.