I think I read somewhere Ross & Morag get married within the next couple of weeks and of course, I'm holding out for the Rachel & Tony wedding in August (fingers crossed) :)
I think Jack & Martha have too much to worry about to add a wedding on top on everything.
the next couple to get married would propbaly be Roman and Charlie. they are always together no matter where they are. another one is probaly be Mils and kirsty. they are around each other every day at the school camp.