Complex sentence: Following a successful petition, there is to be a referendum held in 2016 proposing a directly elected mayor for the Bath and North East Somerset district; this would not affect the position of the Mayor of Bath, which is ceremonial.
Split into simpler sentences: Following a successful petition, there is to be a referendum held in 2016 proposing a directly elected mayor for the Bath and North East Somerset district. This will not affect the position of the Mayor of Bath, which is ceremonial.