[QUOTE=DC3 Dave;10443581]
"As said previously, timetables are developed in May and December. Any changes introduced between are just technical - add a minute here, take 30 secs away elsewhere."
Try telling that to Govia Thameslink passengers. Timetables can be radically altered at very short notice. Not saying this will happen here, but short notice changes are not impossible! We'll just have to wait and see.