I'm planning on getting the train, but will also likely stay over night as the last train back can be sketchy!
By the way for any of the other London folks here, I usually go to most weekend home games but travel up from London. If anyone fancies travelling up as a pack of foxes (sorry, that joke is a bad one!) then let me know. I quite often see a few other Foxes fans at St. Pancras when I travel upwards, it would be fun to travel together to get in the mood, especially as our team of ours is making us all proud right now!