Enjoy the X-E2! Have you sold the D800 or trying them side by side for a while? Reports are favourable so far from the early users, though I'll miss out on this round. I believe the sensor is the same as in the X100S. Don't be disappointed if at first you don't get pictures as good as in your D800; there's a bit of a learning curve, but keep taking photos—it's all fun when you don't have to carry a heavy weight!
I start vacation (stay-cation) after I leave work today, so I'm going to try it out for a week and see how it goes as I'll be in the return period

. I hit the road to visit the parents for Thanksgiving so I'll be using it then as well doing family shots. May hit up downtown in the early morning while everyone is losing their minds shopping. I also have plans to hit the zoo and a couple of parks with my kids to test out how it perfects with an 18 month old running around.
I'm not expecting D800 level continuous AF, but I certainly expect it to keep up. Afterall, my RX100 does well with continuous AF, so something 2x expensive should do well.
Just my luck, it's raining cats and dogs today

. I wanted to take the X100S for a spin after leaving work as the setting sun light is just perfect. There's a little "parking lot carnival" at a mall nearby that was going to test out how it performed in street photos (evening light, continuous AF, dynamic range) shooting RAF+JPEG. I'm hoping the rain does its business by 5pm - the wet streets would add a perfect look too.
Again, I'm not expecting to get D800 performance, but good performance for what I shoot (street, portraits, still-life, car shows/cosplay events, and just general family photos). I don't think those things require the weight of the D800, nor the hassle.
----------
Even if it doesn't yet, Fuji's cameras with X-Trans sensor all use almost identical sensors (AFAIK there are only two variants, the newer one has AF phase detection-capable pixels in the center while the other one doesn't). Congrats, I'm sure you won't regret it.
Are you saying that LR 4.4 should read the X-E2 RAF files? I know the X100S is supported. To me the X-E2 and the X100S are the same cameras, in a different body.