Things are starting to look up, although I'm doing my best not to get my hopes up as I don't want to be disappointed again.
Heathrow has reopened their second runway and are currently relocating planes and crews back to where they're actually supposed to be. In the meantime, they are currently operating 70% of flights. From everything I've read, they've been prioritizing long-distance flights over the short-haul ones, which should mean I have a good chance of my flight leaving on Friday. Knock on wood.
Again, I'm trying not to get my hopes up, but there's not really supposed to be any more snow, so things are looking good at the moment. Everyone keep praying that I make it home. If my plane actually leaves, I think I may start crying on the plane, which could be embarrassing, although I'm pretty sure everyone will feel the same way.