>>18731705
If I had to guess, we'll probably get some awesome auroras and depending on how much charged particles and their polarities maybe some satellite effects. It's def headed our way, and once the models are populated with the data observed so far there will be a better idea if anything more than that will occur. These big earth directed CMEs always present some risk of having more energy and denser plasma than expected and then all bets are off. Long wires and heavy ion and electron bombardment cause lots of problems.
If the sun was a basketball, the earth would be the size of a #9 shot pellet (very small) about 31 yards away. This works in our favor over and over. There's always that one chance that the one in a million fluke nails us with a direct hit. These filaments lifting off are many times the size of earth, but get spread out a lot on the trip.
Think about how bright the sun is at noon. Think about the scale above. There is a stupendous amount of energy radiating from that basketball. There is also plenty of evidence that the sun does very bad things on a far more regular basis than the population is led to believe. We have no control over it, so powers don't spend much time on the subject since they have enough time (a day or two) to get into shelters or launch their personal rockets if the big one is detected.
This is one is of the more interesting variety, but not a concern just yet. Hopefully it stays that way with further observations.